Global Truss PRO-SWIVEL-CLAMP-BLK Pro Swivel Clamp (Black)This black powdered coat Heavy Duty Dual Swivel Clamp for 50mm Tubing from Global Truss is ideal for joining truss systems or pipe with an approximate 2" (48 51 mm) outer diameter. It has 2 M12 bolts which tighten down via a large wing nuts. It is rated at 1,100 lb (500 kg) load capacity. It is compatible with the F31 F32 F33 F34 F44P truss series and is TUV approved. Specifications Tubing Diameter Minimum: 1. 89" (48 mm) Maximum: 2" (51 mm) Load