... ), self color 48.3MMX48.3MM 0.51KG1. Scaffold Coupler/Beam Coupler/ Scaffolding Parts2. Item No.: ZS-E0013. Size: ... nut and flanged nut7. Standard: BS1139&EN74 Class A&B8. High Quality Forged Coupler We are leading company ... /fixed coupler, swivel coupler; fixed/swivel beam/girder coupler, putlog coupler, plank coupler, sleeve coupler, joint pin, single coupler, etc. +We also provide standard, ledger ...