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Drop Forged Girder Coupler – Gravlock Coupler / Beam Clamp for 48.3mm Scaffold Tube
Our Drop Forged Girder Coupler is a heavy-duty scaffolding fitting designed to securely connect 48.3mm scaffold tube to structural steel sections such as I-beams and girders. Also commonly known as SKs, gravlock couplers, or beam clamps, these fittings are widely used where scaffolding needs to be fixed directly to existing steelwork without drilling or welding.
Used in pairs, girder couplers provide a strong and reliable connection between scaffold tube and structural steel, making them ideal for construction, industrial maintenance, and access applications. Suitable for use on steel sections with a maximum flange thickness of 45mm, they offer a practical solution for attaching scaffolding to steel-framed structures.
Manufactured using a drop forging process, these couplers deliver exceptional strength, durability, and performance in demanding site environments. Their robust design ensures secure fixing and long service life, even under challenging working conditions.
Key Features
Product Specifications
Please Note
The finish of scaffold fittings may vary between passivated yellow and zinc-plated depending on supply from our approved manufacturers.
We now ship nationwide! Online orders are available for delivery throughout mainland UK or Click & Collect from our Exeter branch.
We use trusted courier services and pallet networks for larger or heavier items. Delivery charges are calculated at checkout based on your postcode, order size, and weight. Please note: delivery excludes Highlands and Islands, and some postcode surcharges or exclusions may apply.
Order before 11am for same day dispatch on in-stock items (Monday to Friday, excluding bank holidays). Typical delivery is 1-3 working days from dispatch, depending on location and item type.
If you are based in the South West and require a large quantity of scaffolding, including longer items marked collection only online, we may be able to arrange delivery using our own transport. Please contact us on 01392 984164 or sales@wctscaffold.co.uk for a quotation.
Further information regarding collection and delivery can be found on the About Us page.
For information regarding our returns policy, please view our Terms & Conditions.