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Scaffold Fittings
Our versatile range of scaffold fittings includes robust connectors ideal for scaffolds, DIY projects, handrails, and tubular frames, featuring single putlog couplers for fixed 90° connections, load-bearing double couplers for strong right-angle joints, adjustable swivel fittings for flexible angled bracing, tube extension sleeves for external end-to-end attachements, joint pins for internal tube connections, base plates for stable foundations, and girder clamps for attaching to steel beams.
Showing all 18 results
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Single Putlog Coupler – Scaffold Fitting
£2.45 ex. VAT -
Double Coupler – Scaffold Fitting
£2.95 ex. VAT -
Swivel Coupler – Scaffold Fitting
£2.75 ex. VAT -
Sleeve Coupler – Scaffold Fitting
£2.95 ex. VAT -
Joint Pin – Scaffold Fitting
£2.75 ex. VAT -
Base Plate – Scaffold Fitting
Price range: £1.90 through £2.65 ex. VAT -
Prop to Tube Double Coupler
£6.75 ex. VAT -
Prop to Tube Swivel Coupler
£6.95 ex. VAT -
Board Retaining Clamp – Scaffold Fitting
£2.30 ex. VAT -
Girder Clamp – Scaffold Fitting
£5.50 ex. VAT -
Putlog Head Adaptor – Scaffold Fitting
£2.25 ex. VAT -
Oyster Coupler – Scaffold Fitting
£2.95 ex. VAT -
Klawz Clamp – Scaffold Fitting
£10.00 ex. VAT -
Hoarding to Scaffold Coupler
£6.48 ex. VAT -
Roofing Coupler
£3.50 ex. VAT -
Ladder Clamps – Scaffold Fitting
£2.75 ex. VAT -
Heras Fencing Clips
£1.08 ex. VAT -
Anti-Tamper Heras Fencing Couplers
£3.00 ex. VAT
FAQ's
What are scaffold clamps?
Scaffolding clamps, or couplers/fittings, are vital components that join scaffolding tubes, facilitating the creation of stable and accessible working platforms for elevated construction tasks.
Scaffold fitting names and uses – Complete guide to couplers, clamps & connectors
Scaffold fittings (also known as couplers, clamps, or connectors) are essential for joining galvanised steel tubes to build secure, stable scaffolding structures. They ensure safe working platforms at height, support bracing, handrails, toeboards, and more. Understanding each type’s name, alternative names, and specific uses helps you choose the right fittings for compliance, safety, and efficiency.
All our fittings are designed for standard 48.3mm tubes, galvanised for durability, and compliant with UK/EU standards (BS 1139/EN 74). Browse our full range above or shop directly from the product listings.
Quick Comparison Table: Common Scaffold Fittings
Fitting Type | Alternative Names | Load-Bearing? | Main Connections | Primary Uses |
Single Coupler | Putlog couplers, singles, wrapovers, clips | No | Transom/putlog to ledger; toeboards to uprights | Secure transoms/putlogs, toeboards, stop-end handrails |
Double Coupler | Doubles, 90-degree fittings, right-angle couplers | Yes | Ledger/handrail to upright at 90° | Attach horizontal ledgers/handrails to vertical standards |
Swivel Coupler | Swivel clamps, rotating/universal couplers | Yes | Any angle (up to 360°) for bracing | Diagonal/sway bracing, flexible connections |
Sleeve Coupler | Sleeves | Varies | End-to-end tubes (vertical/horizontal) | Join tubes end-to-end, adjustable for size variations |
Expandable Joint Pin | Expanding joint pin, spigot, joiner | Varies | Internal end-to-end tubes | Secure internal tube joins with an expanding grip |
Base Plate | Sole plate, foot plate | N/A (load-spreading) | Upright standards on the ground | Spread load, provide stability on solid surfaces |
Putlog Head Adaptor | Spade end, putlog head | Varies | Standard tube to wall/brickwork | Converts tubes to putlogs for platform support in independent scaffolds |
Gravlock Girder Clamp | SK fittings, beam clamps | Varies | Scaffold tube to steel beam | Attach tubes to steel girders/beams (used in pairs for edge protection) |
Board Retaining Clip | Board clamp, BRC clamp | N/A | Boards to transom tubes | Secure scaffold boards to prevent movement |
Roofing Coupler | Wrigley fittings, waffle clamps | N/A | Tubes to corrugated iron sheets | Temporary roofing structures (two per sheet) |
Tredda Plate | Hi-vis base plate cover | N/A | Under base plates | Prevents tripping hazards on site |
Tube to Prop Double Coupler | Prop double fitting | Varies | Tube to acrow prop at 90° | Brace/stabilise adjustable props |
Tube to Prop Swivel | Prop swivel coupler | Varies | Tube to acrow prop at any angle | Flexible bracing for props |
Tube to Hoarding Coupler | Hoarding coupler | N/A | Hoarding panels to scaffold tubes | Secures perimeter hoarding for safety/security |
Oyster Coupler | Flush fitting coupler | No | Putlog/transom to the ledger | Flush platform finish for board support |
Why These Fittings Matter
Each fitting serves a specific purpose: maintaining structural integrity, preventing slips, and meeting safety regulations (e.g., NASC guidelines). Load-bearing types (double/swivel) handle significant forces, while non-load-bearing ones (single/oyster) focus on positioning and security. Always inspect fittings for damage/corrosion, and use a scaffold spanner to ensure proper tightening.
What are the different types of scaffolding couplers?
Here’s a simplified overview of common scaffold fitting types:
Double couplers: These clamps are used for strong, 90-degree connections, typically for securing ledgers to uprights and handrail tubes.
Single couplers: These typically connect the transom tube supports to the horizontal ledgers on which the boards are placed; this fitting is non-load-bearing.
Swivel couplers: These connect tubes at any angle, often for diagonal or sway bracing.
Sleeve couplers: Allow tubes to be joined end-to-end externally ( typically ledgers, handrails and vertical standards) for longer runs or extended height.
Expandable joint pins: This is an internal connector that is also used to join tube ends to each other.
Girder clamps: This fitting attaches scaffolding tubes to steel beams.
Base plates: These provide a stable base for the scaffold’s legs.
Board retaining clamps: These are used to secure the platform boards to the tube, ensuring the boards do not move.
Putlog head adaptors: This fitting allows tubes to be inserted into walls for the creation of putlog scaffolds.
What is the hex nut size of a scaffold fitting?
The most common nut size you’ll find on a standard scaffold fitting is 21mm, which fits a 7/16-inch scaffold spanner. This size is the industry standard for most scaffolding couplers and clamps.
What are the typical applications of scaffold clamps?
Scaffold clamps and fittings are the most common components used for the erection of tubular structures, safe working platforms and handrail systems within the construction and DIY industry. They connect tubes in straight lines or at different angles to create safe scaffolding structures for users to work from while ensuring structural integrity. The various types of scaffolds that fitting and clamps are used to create include temporary roofs, access scaffolds, birdcages, cantilever scaffolds, gantry scaffolds, independent structures, shoring frameworks, putlog scaffolds, and edge protection systems.
What is the appropriate inspection schedule for scaffold fittings?
Scaffold clamps require regular inspections:
- Pre-use: Quick visual checks should be carried out to inspect for immediate issues.
- Weekly: Detailed inspections for damage, corrosion, and secure connections should be undertaken.
- Incident-based: Immediate checks after impacts or extreme weather. Look for damage, looseness, proper size, and correct installation.
What advantages do scaffold clamps offer?
The benefits of scaffold fittings include:
- Versatile connection capabilities.
- Strong and durable steel construction.
- Corrosion-resistant galvanisation.
- Compliance with EN 74 and BS 1139 standards.
- User-friendly design for quick assembly.
- Contribution to overall scaffolding safety.
What is the load-bearing capacity of a scaffold clamp?
Though generally designed to hold roughly 6.25 kN (1,400 lbs), the load capacity of scaffold clamps is not uniform. Design and manufacturer specifications are essential for determining the accurate weight limit, and a specialist should always be consulted.
How do you secure scaffold fittings?
To ensure a safe scaffolding structure, please follow these steps for tightening the fittings:
With a scaffold spanner:
- Position the fitting on the tube.
- Use the box end of the spanner to tighten the nut firmly, avoiding excessive force.
With a scaffold impact wrench:
- Position the clamp on the tubes.
- Use the impact wrench to tighten the nut quickly and efficiently, being mindful not to overtighten.
- Correct positioning of the fitting on the tube is required before tightening.
What size tube do scaffolding clamps fit?
Standard scaffold clamps and couplers are designed to fit scaffolding tubes that have a 48.3mm diameter.
