Standard Hook Clamp. 40Kg Safe Working Load. Use with 48-51mm Tubes”T-bar” clamp for fixing lighting to trussing or other bars. Will fix to bars up to 51mm in size. The long bolt will secure to most bars.. SWL: 40Kg Tube Diameter: 48-51mm Weight: 0.32Kg. DOUGHTY HOOK CLAMP
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