Adam Hall SCP710B Super Clamp, Universal Clamp, Adjustable clamping lever - can be operated in any position, Full metal design: stainless steel and diecast aluminium alloy, For fixing to round and rectangular pipes as well as flat objects, Clamping range: 13 - 55 mm, 5/8"" (16 mm) hexagonal or round pin holder, 1 x M6 thread and 2 x M5 thread, Load capacity: 20 kg, Rustproof, TÜV tested, Surface: Black, powder-coated, Suitable bolts: SS017 Article number #308869# or SS018 Article number #308867# (not included)