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Doughty Gravlock Coupler (Used in Pairs)


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Gravlock Coupler (Used in Pairs) - Doughty Clamp

These Gravlock couplers are designed specifically to secure a BS1139 scaffold tube with 48mm diameter to a girder/beam at 90 degreesSuitable for flanges up to 45mm thick.

With a zinc plated exterior, a long life can be guaranteed. It is important to note these couplers must be used in pairs as supplied and clamped on opposing sides of the structural sections

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Spec Sheet - User Manual 


  • SWL: 600kg in all directions
    This safe working load is calculated from a series of tests carried out both internally and by independent external testing organizations. The safety factors employed are in excess of those recommended by BS 5973: 1993, clause 39:8:2 (i.e. 2 to 1).
  • Tube Diameter: 48.3mm
  • Weight: 1.47kg
  • Material: Steel
  • Finish: Zinc Plated
  • Standards: EN74 Class A & B, BS1139 Part 2, ISO9002 / BS5750

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