Scaffolding Fitting - Forged Swivel Girder Coupler

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Order 1 to 12 clamps  £5.95 £7.14
Order 13 to 48 clamps  £5.50 £6.60
Order 49 to 96 clamps  £5.10 £6.12
Order 97+ clamps  £4.75 £5.70
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Drop Forged Swivel Girder Coupler (Gravlok) – Steel scaffold fitting

Forged Swivel Girder clamp by Strongforge, this scaffolding fitting is used in pairs to connect 48.3mm scaffold tube to an “I” beam with a swivel 360 degree rotation. This fitting is also known as a Gravlok coupler or ak SK fitting.

All of our drop forged scaffold fittings are zinc plated for longer life, manufactured to BS1139 (Part 2) & EN74 and tested to ensure the highest level of quality control.


Suitable Tube 48.3mm
Quality Control BS1139 & EN74B
Weight 2kg
Material  Zinc Plated Steel


This coupling is most often used together with single, sleeve and swivel couplers to create a scaffold out of new or used scaffolding tube or aluminium scaffold tube. This fitting is the cornerstone of any scaffold framework.  You may also be interested in our range of drop forged scaffolding fittings.

Technical Spec: Download Specification