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For Scaffolding Supplies We Offer Collections & Deliveries

Free scaffold quotations and site visits are available, with flexible hire periods.

We also sell scaffolding and building supplies. Delivery or collection is available.

Scaffold fittings and clamps for sale

Single putlog couplers • Double couplers • Swivel couplers • Sleeve couplers • Joint pins • Base plates • Girder clamps (Gravlock/SK) • Board retaining clamps • Roofing couplers (Wrigley/waffle) • rust resistance & long life • Compatible with 48.3mm scaffold tubes • Ideal for scaffolding frameworks, guard rails, staging, lighting rigs & temporary structures • New high-quality stock

Zinc-Plated Heavy-Duty Fittings • Fast Nationwide Delivery • Collection in West Sussex
Request Free Quote Discount On Bulk Orders

Trusted UK supplier of scaffold connectors since 2012

At West Sussex Scaffolding, we supply a comprehensive range of high-quality scaffold fittings and clamps for safe, secure, and reliable connections with standard 48.3mm galvanised scaffolding tubes. Our selection includes essential components such as:

 

Established in 2012, we are a trusted UK-based scaffolding supplier with extensive hands-on industry experience. As active scaffolders serving domestic, commercial, construction, and industrial clients across West Sussex, Hampshire, Surrey, and nationwide, we understand the importance of durable, corrosion-resistant fittings. Most of our couplers and clamps feature zinc-plated finishes, offering excellent protection against rust and extending service life in demanding outdoor environments. Our products are sourced to support safe temporary works, in line with UK industry best practice and relevant aspects of BS 1139 and associated standards for scaffolding couplers and fittings.

Whether you’re a builder, contractor, or DIY user, our competitively priced scaffold fittings deliver the strength, reliability, and performance required for staging, guard rails, lighting rigs, or complete scaffolding structures. We offer nationwide delivery via professional carriers or collection by appointment from our West Sussex base, with typical lead times of 2–5 working days.

Browse our full range online, or for expert advice, bulk orders, or trade enquiries, contact our team on 0800 133 7934 or office@westsussexscaffolding.co.uk—we’re here to help ensure your project is built on solid foundations.

Our range of scaffold clamps – Key types and uses table

Fitting Type

Common Use

Key Feature

Single Putlog Coupler

Right-angle connections for transoms/putlogs to ledgers

Wrapover design, non-load-bearing

Double Coupler

90° load-bearing joints for standards to ledgers, braces, and handrails

Heavy-duty full grip on both tubes

Swivel Coupler

Diagonal or angled bracing in irregular setups

Full rotation for flexible angles

Sleeve Coupler

End-to-end extension of tubes (vertical or horizontal)

Secure external join

Joint Pin

Internal end-to-end tube connection

Expands inside tubes for a tight fit

Base Plate

Distributing weight on the ground/floors for standards

150x150mm square with spigot

Girder Clamp (Gravlock/SK)

Attaching tubes to I-beams/girders (use in pairs)

High-strength for beam connections

Board Retaining Clamp

Securing scaffold boards to prevent movement

Board clamp for platform safety

Scaffold fitting information

Scaffold fittings or clamps are metal components that include clips, couplers, joiners, sleeves, brackets, and fittings used to connect scaffolding tubes to create working platforms and tubular structures. Below, we provide details of each type of scaffold fitting, including its uses and prices.
Most of the clamps and fittings we supply are zinc-plated to ensure longer life and prevent rusting and corrosion. Scaffold fittings are the foundation of any scaffolding framework, but they can also be used for staging, lighting rigs, guard rails, and much more.

Single coupler: Single wrapover fittings are used to connect tubes at a right angle. This fitting is a great way to connect transoms or putlogs to ledgers when erecting a scaffolding structure. Single couplers are not designed to be load-bearing.

Double couplers: Doubles are used to connect two scaffold poles at 90-degree angles. They are heavy-duty, load-bearing and are typically used for connecting uprights to ledgers, braces to ledgers and handrails to uprights.

Swivel couplers: Swivels are used to connect scaffold tubes at diagonal angles; they are used primarily to add diagonal braces to a scaffold’s framework. The name itself says it all: when two tubes are connected with this fitting, you can move or swivel them around to any angle.

Sleeve couplers: Sleeves are usually preferred for connecting the ends of two scaffolding tubes, extending them vertically or horizontally.

Joint pin: This fitting is also used to connect two tubes end-to-end. The joint pin is inserted into each end of both tubes, and the middle bolt is then secured and tightened, which in turn causes the two parts of the pin to expand and grip the insides of both tubes, providing a secure connection.

Base plates: Straightforward in design, they allow a tube to spread its weight when placed on the floor beneath it. Our base plates are 150mm by 150mm square and 5mm in thickness. The spigot is 50mm tall and is where the tube sits. It has a diameter of 34mm, which allows a 48.3mm tube to slide smoothly around it.

Putlog adapters: Putlog scaffold fittings are generally used by scaffolding erectors on brickwork scaffolds. It is attached to the end of a transom tube, allowing the adapter’s flat end to rest on the brickwork and provide extra support. It is a small but integral piece of scaffolding equipment.

Girder clamps: These scaffold fittings are used in pairs to attach a scaffold tube to an “I” beam girder. Girder clamps, also known as Gravlock couplers or SK fittings, are made from high-quality steel.

Scaffold board retaining clamps: A board retaining clip, also known as a board clamp, is used to secure scaffold boards to the structure’s tubes, preventing the board from moving.

Roofing coupler: Wrigley fittings are primarily used to secure corrugated metal roofing sheets (CI sheets) to the top of a temporary roof covering without requiring drilling into the sheet. They can also be known in the trade as roof couplers or waffle clamps.

Tredda plates: This durable plastic plate is typically used on pavements as a support for base plates to prevent damage to surfaces where a galvanised scaffold tube and steel base plate are situated. It allows the base plate to sit securely inside the plastic and is usually a high-visibility yellow colour. 

  • Single putlog couplers wrap over one tube for right-angle connections (e.g., putlogs to ledgers); lighter-duty, not primary load-bearing.
  • Double couplers grip both tubes fully at 90°; stronger, used where loads are transferred (e.g., standards to ledgers).
  • Swivel couplers rotate to any angle; ideal for braces or irregular setups. Choose based on load and angle needs — we can advise on site.
Fitting TypeCompatible Tube DiameterMaterial/FinishPrimary Strength/Use CaseNotes from Industry Practice
Single Putlog Coupler48.3mmZinc-plated steelRight-angle, non-load-bearing connectionsIdeal for transoms/putlogs; avoid for main loads
Double Coupler48.3mmZinc-plated steel90° load-bearing jointsHeavy-duty; use for structural integrity
Swivel Coupler48.3mmZinc-plated steelAny-angle bracingEssential for diagonals/irregular setups
Sleeve Coupler48.3mmZinc-plated steelEnd-to-end extensionUse for lengthening runs; internal grip
Joint Pin48.3mmZinc-plated steelInternal tube joiningCompression only; not for tension
Base Plate48.3mm spigotZinc-plated steelGround/floor load distribution150x150mm; pair with sole plates on soft ground
Girder Clamp (Gravlock/SK)48.3mm to beamHigh-strength steel, zinc-platedBeam/I-girder attachmentUse in pairs; high shear strength
Board Retaining Clamp48.3mmZinc-plated steelSecuring scaffold boardsPrevents uplift/movement on platforms
Roofing Coupler (Wrigley)48.3mmZinc-plated steelFixing corrugated sheetsNo-drill roof attachments

 

Yes, all our fittings are designed for standard 48.3mm diameter scaffold tubes (common in UK tube-and-fitting systems). They’re zinc-plated for rust resistance and are suitable for frameworks, staging, lighting rigs, guardrails, and temporary structures.

Coupler Type

Angle Flexibility

Load-Bearing?

Typical Applications

Best For

Single Putlog

Fixed 90°

No

Putlogs/transoms to ledgers

Lighter horizontal supports

Double

Fixed 90°

Yes

Standards/ledgers, braces, handrails

Main structural joints

Swivel

Any angle

Yes (angled)

Diagonal bracing, irregular setups

Flexible configurations

Sleeve

Straight join

Yes

Extending tubes vertically/horizontally

Lengthening runs

Our high-quality, brand-new fittings align with UK industry best practices for safe scaffolding (including relevant aspects of BS 1139 for tubes/fittings and EN 74 equivalents for couplers). We prioritise durable, corrosion-resistant designs based on our own scaffolding experience since 2012. Always follow proper assembly and inspection procedures, and comply with TG20:21 guidelines.

Factor

Why It Matters

Our Recommendation / Best Practice

Load Type (Tension/Compression/Shear)

Prevents failure under different forces

Double/swivel for load-bearing; joint pins compression-only

Angle Requirement

Ensures secure connections in complex setups

Swivel for diagonals; fixed (double/single) for 90°

Corrosion Resistance

Extends life in outdoor/wet conditions

All our fittings are zinc-plated for rust protection

Standards Alignment

Compliance with UK safety regs (e.g., TG20:21)

Designed to align with BS 1139/EN 74 principles; always inspect

Mixed Use

Compatibility in combined setups

Yes, if secure—consult us for site-specific advice

Inspection Frequency

Detects wear/damage early

Visual check before each use; full inspection per guidelines

Forged fittings (heavier-duty, often drop-forged) offer superior strength for high-load applications, while pressed are lighter/cost-effective for general use. Our current range focuses on reliable zinc-plated options—contact us if you need specifics on forging type.

Yes, most are compatible in mixed setups (e.g., swivel for bracing + double for main joints), as long as connections are secure and follow design/load requirements.

Match the coupler to the joint type: Use double couplers for load-bearing 90° connections (e.g., standards to ledgers), swivel couplers for angled bracing, single putlog for lighter transom supports, and sleeve/joint pins for extensions. Consider load, angle, and environment—zinc plating helps in wet conditions.

Add items to your cart for a quick delivery quote (nationwide via carriers or collect from West Sussex). We offer discounts on bulk/trade orders. Call 0800 1337934 or email office@westsussexscaffolding.co.uk for personalised advice.