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Fastening components — Tools and materials

Introduction

Fastening components — Tools and materials is the Tools and materials module of Fastening components for vocational learners in Blacksmithing and Artistic metalwork. It focuses on the tools, materials, terminology, risk controls and quality checks used when preparing, fitting and inspecting mechanical fasteners in forge and metalwork settings.

Selected jurisdiction: United Kingdom. Where occupational-safety law is discussed, the detailed examples are labelled for Great Britain: England, Scotland and Wales and use Health and Safety Executive guidance. Northern Ireland has a separate legal framework and regulator, the Health and Safety Executive for Northern Ireland, so this course does not present Great Britain legislation as Northern Ireland law. Where vocational training is discussed, the current blacksmith apprenticeship example is labelled England only. British Standards Institution information is labelled United Kingdom. No qualification, legal duty, standard or job title in this course should be assumed to have automatic cross-country equivalence.

Priority rule: current legislation and regulator guidance, applicable standards and project specifications, manufacturer instructions, employer or college risk assessments, safe systems of work and the instructions of your competent supervisor take precedence over this course. Completion of this aiMOOC is evidence of learning only; it is not a competence certificate and does not authorise unsupervised use of forges, hot metal, drilling machines, grinders, abrasive wheels or other hazardous equipment.

Review status: prepared for expert review and checked against official sources on 1 September 2026. Local trainers should re-check legal, standards, equipment and workplace requirements before delivery.

Course licence: unless otherwise indicated, the original text and original schematic diagrams in this aiMOOC are released under Creative Commons Attribution-ShareAlike 4.0. Embedded Wikimedia Commons media retain the licences stated on their individual file pages. Linked videos are freely viewable learning media but are not assumed to be openly licensed unless the publisher states otherwise.

Image description: a collection of blacksmithing tools. Use the image for tool recognition; it is not a substitute for local inspection, guarding or safe-use instruction.

Learning Outcomes

After working through this module, you should be able to:

Fastener identification: distinguish common solid rivets, bolts, nuts, washers, pins and related fastening components used in blacksmithing and artistic metalwork.
Tool selection: explain the purpose of hand tools, measuring tools and workshop machinery used to prepare and inspect fastening work.
Material selection: choose a suitable fastener material from an approved drawing, specification or training brief and explain why unknown material is unsuitable for safety-critical work.
Joint preparation: explain marking, drilling, reaming, deburring, fitting and support requirements for a sound joint.
Risk control: apply the hierarchy of controls and identify when competent supervision, extraction, guarding, training or task-specific PPE is required.
Quality assurance: inspect fastening work for fit, alignment, function, finish, traceability and compliance with the stated specification.
Sustainable metalwork: suggest repairable, durable and resource-efficient fastening choices.

Jurisdiction, Authority and Current Practice

United Kingdom: Standards Authority

The British Standards Institution, BSI, is the United Kingdom's National Standards Body. British Standards are normally voluntary unless they are required by legislation, contract, client specification or another binding document. A standard should therefore be used in its proper project context rather than treated as a universal recipe.

For threaded fasteners, two examples of current BSI publications that may appear in drawings or purchasing specifications are BS EN ISO 898-1:2013 for carbon and alloy steel bolts, screws and studs with specified property classes, and BS EN ISO 3506-1:2020 for corrosion-resistant stainless-steel bolts, screws and studs with specified grades and property classes.

Workshop rule: do not substitute a bolt, nut, washer or rivet merely because it looks similar. The approved drawing, bill of materials, specification and competent designer or supervisor determine material, dimensions, thread, property class, corrosion requirements and tightening method. A fastener standard does not by itself prove that an assembled joint has adequate structural capacity.

Great Britain: Occupational-Safety Framework

For England, Scotland and Wales, the Health and Safety at Work etc. Act 1974 provides the primary framework for occupational health and safety. The HSE risk-assessment guidance describes identifying hazards, assessing risks, controlling risks, recording significant findings where required and reviewing controls.

The Provision and Use of Work Equipment Regulations 1998 require work equipment to be suitable, maintained, inspected where necessary and used by people who have received adequate information, instruction and training. For this module, that is particularly relevant to pillar drills, grinders, linishers, powered saws and other machinery.

The HSE PPE guidance places PPE after elimination, substitution, engineering controls and administrative controls in the hierarchy. PPE must be selected from the actual risk assessment, fit the user, be compatible with other PPE, and be maintained and used as instructed.

The HSE engineering-noise guidance gives uncontrolled examples of about 95 to 100 dB(A) for hammering steel and 100 to 110 dB(A) for riveting. These examples show why noise assessment and engineering controls matter; they are not measurements of your own workshop. The Control of Noise at Work Regulations use action values that employers must apply to assessed exposure, so learners should never estimate compliance by ear.

Metal dust, fume, coatings, lubricants and some metalworking fluids can fall within COSHH controls. Abrasive-wheel work also needs the equipment, guarding, training and mounting controls described by HSE, including HSG17 Safety in the use of abrasive wheels.

Northern Ireland: Legal Boundary

Northern Ireland has its own occupational-safety framework centred on the Health and Safety at Work (Northern Ireland) Order 1978 and regulations made under it, with enforcement shared principally by HSENI and district councils according to workplace type. This module does not summarise Northern Ireland duties in detail. If you work or study in Northern Ireland, use current HSENI guidance and your local workplace procedures rather than assuming Great Britain legislation applies unchanged.

England Only: Vocational Training Context

The current Skills England Blacksmith apprenticeship standard ST0378 version 1.1 is approved for delivery at Level 3 and lists a typical duration of 48 months. Its occupational profile covers designing, shaping and joining metal components by hot forging and other metalworking processes, including bespoke and heritage work. Relevant knowledge and skills include health and safety, material properties, hand and machine tools, bench work, joining materials using fastening systems, fitting, and preparing fixings and coatings.

Scope note: this is an England-only apprenticeship reference. It is not presented as a Scottish, Welsh or Northern Irish qualification and does not establish equivalence with qualifications in any other country.

Core Concepts

What a Fastener Does

A fastener is a component used to hold two or more parts together. In blacksmithing and artistic metalwork, the choice of fastener is part of the joint design. The joint may need to be permanent, demountable, adjustable or free to pivot.

Typical categories include:

Rivet: a fastener whose tail is plastically deformed to create a second head; normally treated as a permanent mechanical joint.
Bolt: an externally threaded fastener normally used with a nut or threaded feature; often chosen where disassembly is required.
Nut: an internally threaded component that mates with a compatible bolt.
Washer: a component placed under a bolt head or nut where the design requires load distribution, spacing, protection or another defined function.
Pin: a plain or shaped component used to locate parts, retain an assembly or form a pivot when the design calls for it.

Image description: several standard steel rivet profiles. Actual head form, shank diameter, material and length must follow the drawing or approved training specification.

Rivet Anatomy and Load Path

Practitioners commonly describe a solid rivet by its factory head, shank and tail. During riveting, the tail is upset to form the shop head. A support tool, bolster or other approved backing arrangement supports the factory head while the opposite end is formed.

Before assembly:
[ factory head ]========== shank ========== tail

During assembly:
[ factory head ] | plate A | plate B | tail

After forming:
[ factory head ] | plate A | plate B | shop head
                    bearing and clamping interfaces

This diagram is schematic. It does not set rivet length, hole clearance or head dimensions. Those values come from the approved drawing, specification, validated workshop procedure or supervised trial.

Image description: a Wikimedia Commons sequence showing manual rivet installation with a ball-pein hammer. Treat it as a conceptual illustration only; your supervisor's approved technique and safety controls take precedence.

Bolts, Nuts and Washers

A bolted joint may transfer load through clamp force, friction between parts, direct bearing and shear, or a combination determined by the design. The relationship between bolt tension and applied torque is affected by thread condition, lubrication, coatings and friction. For that reason, a torque value must come from a valid specification or controlled procedure rather than guesswork.

Image description: an assembly drawing showing a bolt, nut and washer. The image supports component recognition but does not prescribe grade, tightening or structural capacity.

A bolt's property class or material grade matters. So do the nut and washer specification, thread size and pitch, engagement, corrosion environment, joint geometry and service loads. Never assume that stainless steel is automatically stronger, safer or more suitable than carbon steel; material selection is an engineering and project decision.

Threads and Fit

Thread form, nominal diameter and pitch must match. Cross-threading, damaged threads, mismatched thread systems and contamination can prevent reliable assembly. Use a thread pitch gauge, approved reference fastener or drawing information when identification is uncertain.

Image description: a language-neutral diagram of metric screw-thread geometry. Use it to recognise pitch and thread geometry; do not scale the drawing or treat it as a substitute for the specified standard and dimensions.

Authentic Blacksmithing and Artistic Metalwork Examples

Application	Typical fastening idea	Functional requirement	Vocational learning point
Blacksmith's tongs	Solid rivet used as a pivot	Secure retention with the intended free movement and controlled play	A pivot should not simply be riveted as tightly as a rigid lap joint
Decorative latch	Rivet, pin or specified threaded fastener	Reliable movement, alignment and serviceability	Joint type follows the design rather than habit
Removable decorative panel	Bolt, nut and washer arrangement	Demountability without damage to the surrounding forged work	Access for spanners and future maintenance must be considered during design
Gate or railing assembly	Specified bolts, rivets or installation fixings	Compliance with the structural, installation and corrosion specification	Architectural work may require design information beyond the blacksmith's workshop drawing
Heritage repair	Existing riveted or bolted detail reproduced only when the conservation specification requires it	Minimum loss of historic fabric and compatible repair	Original material should not be removed merely to simplify modern assembly
Jig or workshop fixture	Bolts, pins or clamps	Repeatable location and safe adjustment	A workshop fixture is still work equipment and must be assessed and maintained

Technique Media: United States Examples, Not UK Legal Sources

The following videos are useful for observing practitioner sequences, but both are presented as United States technique media. They are not evidence of UK legal compliance, a UK qualification, a safe setup for your workshop or automatic cross-country equivalence. Pause the video and compare every observed step with your own drawing, risk assessment, equipment instructions and supervisor guidance.

United States: Ken's Custom Iron — How To: Riveting Basics. The video uses blacksmith tongs to demonstrate basic riveting. Observe how support, alignment and head formation interact.

United States: Farmstead Forge — How to Forge Blacksmith Rivet Tongs. This longer demonstration includes tong manufacture and a riveting stage. Use it to analyse workflow, not to copy equipment use without instruction.

Tools

Hand Tools for Fastening Work

Tool	Practitioner use	Selection and control point
Tongs	Hold appropriately shaped hot stock or a hot rivet	Jaw shape and grip must suit the work; hot handling requires competent supervision
Ball-pein hammer	Controlled peening and rivet-head formation where the approved procedure calls for it	Face and handle must be sound; hammer mass must suit the task and learner
Cross-pein or engineer's hammer	General controlled forging, fitting or alignment according to the job	Use the specified tool rather than improvising with damaged or unsuitable hammers
Rivet set	In traditional hand riveting, commonly used to draw plates together around the rivet and begin controlled head formation	Tool naming varies between workshops; confirm the local tool set and method
Rivet snap	Cup-faced finishing tool used to form or finish a domed rivet head	Match the cup to the required head; poor support or misalignment can distort the joint
Bolster or backing tool	Supports the factory head during riveting	Support must be stable and matched to the head form
Punch	Marks, pierces or works a hole according to the process	A hot or cold punch is not automatically interchangeable with drilling
Drift	Aligns or sizes an existing hole where the approved process permits	Do not use a drift to force badly misaligned parts into a stressed assembly
File and deburring tool	Removes burrs and refines edges or holes	Keep files in good condition and use a handle where the file design requires one
Spanner or socket	Holds or turns specified nuts and bolt heads	Correct size reduces rounding and slip
Torque wrench	Applies a specified tightening torque where the procedure uses torque control	Use only within its stated range and calibration system; do not use as a general breaker bar

Measuring and Inspection Tools

A steel rule, square, calliper, thread pitch gauge, radius gauge and approved templates can all contribute to repeatable work. Measurement should be tied to the drawing or acceptance criteria rather than performed only after the joint is complete.

Image description: a labelled vernier calliper. A calliper can check outside dimensions, inside dimensions and depth when the tool type, range and accuracy suit the requirement.

Before relying on any measuring tool, check its condition, zero or reference reading as appropriate, required resolution and local calibration system.

Workshop Machines and Powered Tools

Common preparation equipment can include a pillar drill or drilling machine, powered saw, grinder, linisher and portable drill. These machines introduce hazards that are different from hand forging, including entanglement, ejected workpieces, swarf, abrasive-wheel failure, dust, noise and vibration.

Image description: a technician operating a drill press. In UK vocational workshops this machine is commonly called a pillar drill or drilling machine. The photograph is for machine recognition only and should not be treated as an approved setup or PPE example.

Under Great Britain PUWER principles, work equipment must be suitable, safe, maintained and used by adequately trained people. Guards, workholding, speeds, tooling, isolation and emergency controls must follow the machine-specific risk assessment and manufacturer or workplace instructions. Never hold work by hand merely because a demonstration looks simple.

Materials

Fastener and Workpiece Materials

Material or consumable	Typical vocational use	Selection rule
Commercial low-carbon steel solid rivet	General non-structural training joints and traditional forged work where specified	Use a known diameter, length and material that matches the approved exercise or drawing
Known-specification low-carbon steel bar	Instructor-approved practice material and, where a validated procedure allows, making non-safety-critical training rivets	Do not turn unknown scrap into a safety-critical fastener
Carbon or alloy steel threaded fastener	Demountable assemblies and specified architectural or workshop joints	Use the specified property class, dimensions, thread and coating
Corrosion-resistant stainless-steel threaded fastener	Projects where the specification calls for stainless material	Confirm grade, property class, mating parts, environment and galling risk; stainless is not a universal substitute
Compatible nut	Mates with a specified bolt	Thread and mechanical property requirements must match the specification
Washer	Load distribution, spacing, surface protection or another defined joint function	Use the type and orientation stated by the design; do not add or omit washers casually
Mild-steel practice coupon	Marking, drilling, reaming, riveting and inspection exercises	Keep training coupons clearly identified so they cannot be mistaken for production parts
Approved lubricant or anti-seize compound	Thread assembly only where the controlled procedure requires it	Lubrication changes friction and can change achieved preload for a given torque
Coating or finish	Paint, wax, oil, galvanizing system or another approved protective finish	Compatibility, service environment and repairability must be considered
Cutting fluid	Drilling, reaming or machining where the machine process requires it	Use only products approved by the COSHH assessment and workplace procedure

Material Traceability

For important work, traceability begins before fabrication. Keep material labels, purchase information, fastener markings, certificates where the specification requires them, and batch or job records. A blacksmith's visual judgement is valuable for process control, but appearance alone cannot establish alloy, property class or certification.

Do not use mystery scrap for structural, safety-critical or otherwise specified fasteners. Reclaimed material can be appropriate in artistic or heritage work only when its identity, condition and suitability are addressed by the competent project decision-maker.

Risk Controls and Safe Working

Non-Negotiable Learning Boundary

Hazardous practical work in this module is supervised vocational activity. Do not light or adjust a forge, heat or handle a rivet, operate a pillar drill, use a grinder or abrasive wheel, perform powered cutting, or maintain machinery unless you have been trained, authorised and supervised to the level required by your workplace or college.

If you are uncertain about a condition, stop the task, make the area safe according to your local procedure and ask the responsible supervisor. Online instructions never override a machine manual, risk assessment or safe system of work.

Hazard and Control Table

Hazard	Possible harm	Priority controls and learner boundary
Hot metal, scale and radiant heat	Burns, eye injury, fire	Segregate hot work, use designated hot-work areas and tools, maintain clear communication and apply task-specific PPE from the risk assessment; learners handle hot work only under competent supervision
Hammering and riveting impact	Flying fragments, hand injury, noise exposure	Maintain tools, control the striking zone, secure the work, separate bystanders, use engineering or organisational noise controls and apply specified eye or face and hearing protection
Pinch and crush points	Finger or hand injury	Plan support and grip positions, use suitable tongs, clamps or jigs, and keep hands clear of the closing or upset zone
Pillar drill and rotating tools	Entanglement, ejection, cuts from swarf	Use guarding and secure workholding, correct tooling and authorised speeds; tie back or contain loose hair and clothing as instructed; never reach for rotating swarf; follow machine-specific rules on gloves because loose material near rotation can create entanglement hazards
Grinder, linisher or abrasive wheel	Wheel failure, ejected particles, dust, burns, noise	Use only inspected, correctly guarded and suitable equipment; follow HSG17, local training and wheel or belt specifications; learners do not mount or change wheels unless specifically competent and authorised
Metal dust, fume, coatings and fluids	Respiratory, skin or other health effects	Eliminate or substitute where possible, use process enclosure or local exhaust ventilation where specified, apply COSHH controls and use suitable RPE only when the assessment requires it
Noise	Permanent hearing damage	Assess exposure, reduce noise at source, isolate or damp noisy processes and limit exposure as part of the control strategy; hearing protection does not replace reasonably practicable engineering controls
Hand-arm vibration	Vibration-related injury	Select lower-vibration equipment where practicable, maintain tools, manage exposure time and follow HSE and workplace controls
Sharp edges and swarf	Cuts and punctures	Deburr where required, remove swarf with suitable tools when the machine is safe, and store parts so sharp edges are controlled
Manual handling	Strains, crush injuries, dropped work	Plan the lift, use mechanical aids or team handling where assessed, and keep routes clear
Fire, fuel and forge systems	Fire, explosion, burns, toxic exposure	Forge operation, fuel systems and ventilation are controlled by local procedures and competent supervision; this module gives no unsupervised fuel-system instructions
Maintenance and stored energy	Unexpected start-up, trapping, electrical or mechanical injury	Isolate equipment according to the workplace procedure and permit maintenance only by authorised competent people
Housekeeping	Trips, slips, blocked escape routes	Keep floors, leads, tools, scrap and hot-work zones organised; remove waste through the approved system

PPE Is the Last Line of Defence

Task-specific PPE can include suitable eye or face protection, protective footwear, work clothing and hearing or respiratory protection where the assessment requires them. The correct selection depends on the hazard, equipment and wearer. For example, eye protection for drilling is not chosen in exactly the same way as protection from grinding particles or hot scale.

PPE must fit the learner and be compatible with other protective equipment. Inclusive provision may require different sizes, shapes, prescription-eye-protection solutions, hearing-protection options or adjustments to the work method. A safety rule should control the actual risk without excluding a learner unnecessarily.

Temperature and Hot-Work Judgement

Do not use colour alone as a temperature measurement or an authorisation to forge or rivet. Apparent colour changes with ambient light, surface condition and the observer. The approved material procedure, equipment controls, instructor judgement and, where required, temperature measurement determine the working range.

Step-by-Step Supervised Demonstration

Demonstration: Solid-Rivet Lap-Joint Training Coupon

Purpose: make and inspect a small, non-structural lap-joint coupon using a known commercial solid rivet. The task teaches preparation, support, controlled upsetting and inspection. It is not a structural joint-design exercise.

Supervision boundary: the trainer decides which steps learners may perform. Machine operation and hot riveting occur only for learners who are trained and authorised for the specific equipment and under the level of supervision required locally.

Read the job information. Review the training drawing, material specification, risk assessment, safe system of work, acceptance criteria and assigned roles before collecting tools.
Verify the components. Confirm the two identified steel coupons, the specified rivet, required head form and any batch or job information. Reject unknown or damaged fasteners.
Prepare the work area. Inspect approved hand tools, workholding and measuring equipment. Confirm that machine guards, extraction, noise controls, hot-work zone and required PPE are in place.
Mark the joint. Use the drawing, rule, square and marking tools to establish the hole position. The trainer checks edge distance and alignment before material is removed.
Make the holes under authorisation. Clamp each coupon or the approved assembly securely. A trained learner uses the pillar drill or other specified process; nobody holds the work by hand against a rotating drill.
Finish the holes. Deburr and, if the drawing calls for it, ream the holes to the required size and finish. Check that parts assemble without being forced into damaging misalignment.
Dry-fit and measure. Insert the cold rivet to confirm fit and the specified tail projection. Use the drawing, gauge or validated workshop sample rather than an improvised rule of thumb.
Set up support. Position the approved bolster or backing tool so the factory head is fully and stably supported. Confirm a safe striking zone and clear hand positions.
Heat only under the approved process. The supervisor controls the hot-riveting stage and determines the acceptable working condition for the stated rivet material. This course deliberately gives no colour-only or temperature shortcut.
Insert and draw the joint. Using suitable tongs, place the rivet and bring the plates together with the specified riveting tool or sequence while maintaining alignment.
Upset and finish the shop head. Apply controlled, centred blows in the approved sequence, then use the correct rivet snap if a domed head is specified. Stop when the joint meets the process criterion; excessive hammering can damage the head or surrounding work.
Cool and control the hot part. Place the coupon in the marked hot-work area and allow it to cool by the method specified for the exercise. Do not touch, quench or pass it to another person unless the local procedure allows that action.
Inspect and record. When confirmed safe to handle, check head shape, seating, alignment, gaps, cracks, distortion and dimensions against the criteria. Record defects, measurements and any rework decision.

RIVETED LAP-JOINT CHECK

Before:   [factory head]======shank======tail
Fit:      [factory head]|plate A|plate B|tail
Finish:   [factory head]|plate A|plate B|shop head
Check:          support     alignment     centred head

Important: some small rivets and some production methods use cold riveting. Hot and cold riveting are not automatically interchangeable; use only the method specified for the material, dimensions and joint.

Common Errors and Corrections

Common error	Why it matters	Better practice
Rivet is too short or too long for the specified joint	The shop head may be undersized, misshapen or excessively spread	Verify grip length and tail projection from the drawing or validated procedure before heating
Hole is oversized, rough or badly positioned	The rivet can sit poorly, concentrate bearing or allow unintended movement	Control marking, drilling, reaming and deburring; inspect before assembly
Drift is used to force major misalignment	Parts can be distorted or locked under stress	Correct the preparation problem instead of forcing the assembly
Factory head is poorly supported	The existing head can flatten or move while the shop head is formed	Use the correct stable bolster or backing arrangement
Blows are off-centre	The shop head forms eccentrically and may damage the plate	Re-establish support, stance and striking line under supervision
Riveting continues after the work is outside the approved hot-working condition	Cracking or poor forming can result	Follow the supervisor's stop and reheat decision; never rely on colour alone
Rivet is overheated	Material and surface can be damaged	Use the controlled heating procedure and reject damaged fasteners
A pivot is upset as if it were a rigid joint	Tongs or a latch may bind	Inspect movement throughout the approved pivot-riveting sequence
Threads are crossed or mismatched	Thread damage and unreliable clamping can result	Confirm thread size and pitch, start cleanly and stop if abnormal resistance occurs
Wrong property class or material is substituted	Capacity, ductility or corrosion behaviour may differ	Verify markings and purchase or job documentation before assembly
Lubricant is added without authorisation	Torque-to-preload behaviour can change	Use only the specified lubrication condition
Burrs are left around a hole	Seating, fit and safe handling can be compromised	Deburr to the drawing or process requirement before assembly
Grinding is used to hide a poor joint	Section thickness, head form or protective finish may be lost	Correct the process cause and rework only when the specification permits it
A neat-looking joint is assumed to be structurally adequate	Appearance does not establish material grade, internal load path or design capacity	Use the drawing, inspection plan and competent acceptance process

Quality Criteria

A good fastening job is not defined by appearance alone. Evaluate the joint against measurable and functional criteria.

Criterion	Questions for inspection
Specification	Are the fastener type, material, dimensions, head form, thread and finish those stated on the approved drawing?
Traceability	Can required fastener and material information be linked to the job record?
Hole preparation	Are position, diameter, finish and deburring within the stated acceptance criteria?
Alignment	Do parts sit in the intended position without forced distortion?
Rivet heads	Is the factory head properly seated and the shop head centred, sound and formed to the specified profile?
Surface condition	Are cracks, heavy tool marks, damaging scale, sharp burrs and unintended grinding absent?
Pivot function	If the joint is a pivot, does it move through the intended range without excessive play or binding?
Threaded assembly	Are threads undamaged, mating parts correct, engagement adequate to the specification and tightening completed by the specified method?
Corrosion protection	Has the finish been restored or applied without contaminating functional surfaces?
Surrounding forged work	Has the fastening operation preserved the intended form, texture and section of the artistic metalwork?
Documentation	Are measurements, tightening records, inspection status and deviations recorded when the quality plan requires them?

Acceptance boundary: structural, load-bearing, public-facing, lifting, guarding, life-safety or heritage-critical joints require the competent project acceptance process. This module does not provide structural calculations or certify a joint for service.

Sustainability and Heritage Practice

Good fastening choices can extend service life and make repair easier. Sustainability is not simply using less metal; it includes durability, maintenance, disassembly, appropriate corrosion control, responsible consumables and avoiding unnecessary rework.

Design for repair: use demountable fasteners where future access is valuable and the design permits them.
Durability: select compatible fasteners and finishes for the actual environment so premature corrosion does not force replacement.
Material efficiency: nest coupons and components, control drilling and cutting accurately, and reduce rejected work through first-time-right preparation.
Tool maintenance: sharp, correctly maintained tools generally support better quality and reduce wasted effort and damaged work.
Scrap segregation: separate steel and other metals according to the workshop recycling system; keep contaminated waste out of clean scrap streams.
Consumables: manage used abrasive products, oils, cutting fluids, coatings and contaminated wipes through the approved waste route.
Energy awareness: avoid unnecessary reheating and grinding; plan the sequence so heat and machine time are used purposefully.
Heritage conservation: retain sound historic material where the conservation brief requires it, record interventions and avoid replacing an original fastening detail merely for convenience.

A sustainable repair still has to be safe and fit for purpose. Reuse is not automatically better when the condition or specification of a fastener cannot be established.

Glossary

Term	Practitioner meaning in this module
Fastener	A component used to hold or locate parts in an assembly
Rivet	A fastener whose tail is deformed to create a retaining head
Factory head	The manufactured head already present on a solid rivet
Shank	The main cylindrical body of a rivet or unthreaded portion of a fastener as applicable
Tail	The end of a rivet that is upset during installation
Shop head	The head formed on the rivet tail during riveting
Upset	To plastically shorten and enlarge metal by compression
Bolster	A support or backing tool used beneath a rivet head in an approved riveting setup
Rivet set	A traditional riveting tool commonly used to draw plates together and begin head formation; local naming should be confirmed
Rivet snap	A cup-faced tool used to form or finish a domed rivet head
Punch	A tool used to mark, pierce or work a hole according to the process
Drift	A tool used to align or size an existing hole where the method permits
Reamer	A multi-edge cutting tool used to bring an existing hole to a controlled size and finish
Clearance hole	A hole sized to allow a specified fastener to pass without thread engagement in that member
Thread pitch	The axial distance between corresponding points on adjacent threads
Property class	A standardized designation for specified mechanical properties of certain threaded fasteners
Preload	Initial tension introduced into a bolt by a controlled tightening process
Clamp force	Compressive force holding joint members together as a result of fastener tension
Swarf	Chips or curls of material produced by drilling, machining or cutting
Deburr	To remove unwanted raised or sharp material from a cut or hole edge
Galling	Adhesive wear and local seizure that can occur between contacting metal surfaces, including some stainless threaded fasteners
Corrosion compatibility	Suitability of joined materials and finishes for the service environment without unacceptable corrosion interaction
Fixing	In UK trade usage, a component or system used to attach work to a substrate; the term should not be assumed to mean the same thing as every workshop fastener

Reflection

Selection: If the client needs a decorative panel to be removed for maintenance, what advantages and disadvantages would a bolted joint have compared with a permanent riveted joint?

Quality: Which defects can you detect visually, and which requirements need measurements, material records or a specified tightening record?

Safety: Which control measures in your own workshop act before PPE, and where could the process be redesigned to reduce exposure further?

Craft: How can a fastener support the visual language of forged work without hiding poor joint preparation?

Inclusion: What tool, workstation, communication or PPE adjustments would allow different learners to complete the same learning outcome safely?

Sustainability: When would reuse of an old fastener create more uncertainty or future waste than selecting a new, traceable fastener?

Expert Review and Update Checklist

Before this module is adopted for teaching, a competent vocational reviewer should:

verify the legal jurisdiction and replace or supplement the Great Britain references if the workshop is in Northern Ireland or another country;
confirm that the England apprenticeship reference is relevant to the programme and is not presented as UK-wide certification;
check the current edition and applicability of every cited British Standard against the actual project scope;
add local machine models, operating instructions, inspection intervals and authorisation rules;
add the workshop's current risk assessments, COSHH assessments, noise and vibration controls, emergency arrangements and PPE specifications;
define the exact rivet sizes, hole tolerances, head dimensions, tightening methods and quality limits for each supervised practical exercise;
review accessibility adjustments with learners and the organisation's equality and support procedures;
confirm that external media remain available and that their licences or terms of use are accurately described;
have a subject specialist in blacksmithing or artistic metalwork check local terminology, especially names for rivet sets, snaps, bolsters and workshop fixtures.

Official and Technical Sources

United Kingdom and Great Britain

HSE — Health and Safety at Work etc. Act 1974 overview: Great Britain occupational-safety framework.
HSE — Managing risks and risk assessment at work: current risk-control guidance.
HSE — Provision and Use of Work Equipment Regulations: work-equipment suitability, maintenance, inspection and training.
HSE — Using personal protective equipment to control risks at work: PPE selection, instruction and hierarchy.
HSE — Noise in engineering: engineering-noise examples and control approaches.
HSE — COSHH: control of exposure to substances hazardous to health.
HSE — HSG17 Safety in the use of abrasive wheels: abrasive-wheel guidance.
BSI — Standards: access point for current UK standards information.
BSI — BS EN ISO 898-1:2013: carbon and alloy steel bolts, screws and studs with specified property classes.
BSI — BS EN ISO 3506-1:2020: corrosion-resistant stainless-steel bolts, screws and studs.

Northern Ireland

HSENI: current regulator information for Northern Ireland.
HSENI — subordinate health and safety legislation: legislation made or deemed made under the Health and Safety at Work Northern Ireland Order and related provisions.

England only

Skills England — Blacksmith ST0378 version 1.1: current apprenticeship occupational standard used here only as an England training reference.

Interactive Tasks

Quiz: Test Your Knowledge

What is the shop head of a solid rivet? (The head formed from the rivet tail during installation) (!The manufactured head supplied on the rivet) (!The hole drilled through the plates) (!The washer placed below the rivet)

Which tool is commonly used to finish a specified domed rivet head? (Rivet snap) (!Thread pitch gauge) (!Reamer) (!Steel rule)

What is the main purpose of a reamer in joint preparation? (To bring an existing hole to a controlled size and finish) (!To create a bolt preload) (!To support a rivet factory head) (!To identify a fastener property class)

When should a torque wrench be used on a threaded joint? (When the approved procedure specifies a controlled tightening torque) (!Whenever a nut feels difficult to turn) (!Only to loosen seized fasteners) (!As a substitute for checking thread size)

What should determine the property class of a bolt used in specified work? (The approved drawing or project specification) (!The colour of the bolt surface) (!The nearest bolt available in the workshop) (!The largest spanner that fits)

Where does PPE sit in the hierarchy of controls? (After higher level controls such as elimination and engineering controls) (!Before hazard elimination) (!Instead of machine guarding) (!Instead of training and safe systems of work)

Why is deburring important after drilling a fastening hole? (It removes raised or sharp material that can affect fit and handling) (!It increases the nominal thread pitch) (!It changes carbon steel into stainless steel) (!It proves the joint is structurally adequate)

What is a key quality requirement for a riveted tong pivot? (Secure retention with the intended movement and controlled play) (!Maximum tightening until the joint cannot move) (!A shop head larger than every drawing dimension) (!Grinding until the joint surface is completely flat)

Why should unknown scrap not be used for a safety critical fastener? (Its material properties and suitability may not be established) (!It can never be cut with workshop tools) (!It always contains stainless steel) (!It automatically has excessive thread pitch)

What does completion of this aiMOOC authorise? (Evidence of learning without automatic permission for hazardous practical work) (!Independent use of every forge and machine) (!Automatic UK blacksmith certification) (!Automatic equivalence with qualifications in other countries)

Memory Game

Rivet	Fastener whose tail is deformed to form a retaining head
Reamer	Tool for controlled sizing and finishing of an existing hole
Swarf	Chips or curls produced by drilling or machining
Preload	Initial tension introduced into a bolt by controlled tightening
Caliper	Measuring tool for checking dimensions such as diameter
Bolster	Support placed beneath a rivet head during an approved setup
Deburring	Removal of unwanted raised or sharp material from an edge

Drag and Drop

Match the correct terms.	Fastening work
Rivet snap	Finish a specified domed shop head
Reamer	Finish an existing hole to controlled size
Torque wrench	Apply a specified tightening torque
Caliper	Check a component diameter
Bolster	Support the factory head during riveting

...

Crossword Puzzle

Rivet	Which permanent fastener is installed by forming a second head from its tail?
Reamer	Which cutting tool finishes an existing hole to a controlled size?
Caliper	Which measuring tool can check an outside diameter accurately?
Preload	What is the initial tension introduced into a bolt by controlled tightening?
Bolster	Which support tool can back a rivet head during hand riveting?
Fastener	What general term describes a component used to hold parts together?

LearningApps

Cloze Text

A mechanical

holds or locates parts in an assembly. The tail of a solid rivet is upset to form the

. A

can bring an existing hole to a controlled size and finish. The approved drawing or specification determines the required fastener

. A torque wrench is used only when the procedure specifies controlled

. In the hierarchy of controls,

comes after higher level measures such as elimination and engineering controls. Drilling and machining can produce sharp chips called

. A tong pivot must retain the parts while allowing the intended

. Unknown scrap should not be used when material

is required. Current official rules and workplace

take precedence over this course.

Open-Ended Tasks

Easy

Fastener identification: Study a trainer-provided set of cold, safe samples and create a labelled photo sheet or sketch page identifying rivets, bolts, nuts, washers and pins without operating machinery.
Tool map: Produce a workshop map or infographic showing where approved fastening tools are stored and write one sentence explaining the purpose of each selected tool.
Material traceability: Compare labels, fastener markings and job paperwork supplied by your trainer, then explain which information helps prevent accidental material substitution.
Quality inspection: Inspect pre-made cold riveted and bolted samples, record visible defects and identify which features would still require measurement or documentation before acceptance.

Standard

Joint selection matrix: Compare three teacher-provided design scenarios and justify whether a rivet, pin or threaded fastener best supports permanence, movement, maintenance and appearance.
Risk control review: Analyse the risk assessment for one approved fastening task and reorganise its controls by elimination, substitution, engineering, administrative measures and PPE.
Measurement report: Under supervision, measure a prepared hole, rivet shank and finished head using approved measuring tools, compare the results with a training drawing and write a short inspection report.
Process video storyboard: Observe an instructor-led fastening demonstration and produce an accessible video storyboard with captions that highlights preparation, supervision boundaries, hazard controls and quality checks.

Advanced

Supervised riveting trial: In an approved vocational workshop and only under competent supervision, make a non-structural riveted training coupon to the supplied drawing, then document material identity, process checks, measurements and defects.
Heritage fastening case study: Visit an approved museum, heritage site or documented historic ironwork collection, observe fastening details without removing or disturbing material, and propose questions a conservator should answer before intervention.
Failure analysis: Analyse instructor-supplied failed samples or photographs, distinguish preparation, material, process and service-related causes, and recommend evidence needed before deciding on rework.
Sustainable redesign: Redesign a decorative metal assembly so it can be maintained or disassembled where appropriate, justify fastener and corrosion-control choices, and compare likely waste, repairability and service life with the original design.

Learning Assessment

Fastening process selection: Given a decorative hinge, removable panel and rigid bracket, select an appropriate fastening concept for each and defend your choices in terms of movement, serviceability, appearance and specification control.
Quality decision: Evaluate an instructor-provided inspection record for a riveted joint, identify which evidence supports acceptance or rejection and state what additional evidence a competent reviewer would need.
Safety transfer: Convert the hazards of a supervised pillar-drilling and riveting exercise into a control plan that distinguishes engineering controls, safe systems of work, training and PPE.
Material and standards reasoning: Explain why two bolts with the same nominal diameter may not be interchangeable and show how you would verify thread, property class, material, finish and project requirements without relying on appearance.
Workshop documentation: Create a concise job record that links material identification, fastener selection, measurements, process status, inspection results and authorised deviations.
Professional defence: Present a proposed fastening method to a peer acting as an expert reviewer, respond to challenges about risk, quality, access, sustainability and maintenance, and revise the proposal where the evidence requires it.

Evidence of Learning

Important evidence of learning includes:

Knowledge: accurate use of fastening terminology, understanding of rivet anatomy, threaded-fastener identification, material compatibility and the limits of standards.
Safety reasoning: ability to identify hazards, apply the hierarchy of controls, respect authorisation boundaries and explain why PPE does not replace higher-level controls.
Tool knowledge: correct matching of rivet tools, measuring equipment, drilling and finishing equipment to their purposes and limitations.
Practical evidence: where the institution permits supervised workshop work, a non-structural training coupon produced to the supplied drawing with trainer observation records.
Quality evidence: measurement sheets, visual inspection notes, functional checks and documented decisions tied to acceptance criteria.
Design evidence: a justified choice between permanent, demountable and pivoting fasteners for authentic artistic-metalwork situations.
Sustainability evidence: a redesign, repair plan or materials decision that addresses service life, maintenance, waste and corrosion rather than focusing only on material quantity.
Transfer: ability to recognise when a new workplace, country, structural application or heritage context requires fresh rules, specifications and competent advice rather than automatic transfer of the training exercise.

OERs on the Topic

The following Wikimedia Commons files are integrated as learning media. Always retain the attribution and licence information shown on the current file page when reusing them:

BLACKSMITH TOOLS.jpg: blacksmithing-tool photograph, Creative Commons Attribution-ShareAlike 4.0 according to the Commons file page.
Rivets.svg: diagram of standard steel rivet profiles, Creative Commons Attribution-ShareAlike 3.0.
Rivet.svg: manual rivet-installation sequence, available under the licences shown on its Commons file page.
BOLT NUT.jpg: bolt, nut and washer assembly drawing, Creative Commons Attribution-ShareAlike 3.0.
Vernier caliper.svg: labelled measuring-tool diagram, available under the licences shown on its Commons file page.
Drillpress.jpg: technician using a drill press, Creative Commons Attribution-ShareAlike 2.5.
Screw thread geometry-diagr.png: metric screw-thread geometry diagram, Creative Commons Attribution-ShareAlike 4.0 among the licences listed on its Commons file page.

Linked Learning Areas

Fastening components

The best matching MOOCwiki Schmiede theme is represented here by the English learning area and category Blacksmithing. Related vocational areas include Metalworking, Fabrication, Engineering workshop practice, Craft education and Heritage skills.