... 3. Material: Q235 4. Surface: HDG &Elec. 1. Scaffold Coupler/Pressed Swivel Coupler/ Scaffolding Parts2. Item No.: ZS-A0443. Size: 0.64kg, 48 ... couplers/clamps, such as double/fixed coupler, swivel coupler; fixed/swivel beam/girder coupler, putlog coupler, plank coupler, sleeve coupler, joint pin, single coupler, etc. +We also provide standard ...