Check the listing for details. Truss Quick Rig/Self Locking Hook Clamp Silver, 2"/48-51 mm diameter. Condition: New. Listed at 29.40 USD. Truss Quick Rig/Self Locking Hook Clamp Silver, 2"/48-51 mm diameter The Self Locking Hook Clamp is a fast and simple way to attach devices to a truss or pipe. The special design with lateral screw prevents it from hooking itself to the devices or to the cross beam. The large wing nut makes it easy and fast to lock the coupler in place. Working with all standard 2 inch / 48-51mm truss pipes, the Self Locking Hook Clamp can be used with a tensile load of up to 550 lbs./250 kg.DETAILSCompatible: F31,F32, F33, F34 and F44P trussMinimum Tubing Diameter: 48mmMaximum Tubing Diameter: 51mmMax Load Capacity: 550 lbs./250 kgs.Unit Weight: 1.02 lbs.Finish: Aluminum/Silver Compatible with Cosmic Truss by GLP, Global Truss America by American DJ, Trusst by Chauvet Lighting, and many others models of truss with 2 inch/48-50 mm diameter.