... EN74,IS09001:2000,MPV,CE 1. Scaffold Coupler/British Type Swivel Coupler/ Scaffolding Parts2. Item No.: ZS-A0013 ... pressed scaffolding couplers/clamps, such as double/fixed coupler, swivel coupler; fixed/swivel beam/girder coupler, putlog coupler, plank coupler, sleeve coupler, joint pin, single coupler ... bolt, hex nut, flange nut. +Our pressed fixed/swivel clamp has SUV certificate. +The surface finish ...