... 4.surface:golden/silver zinc galvanized Scaffolding Coupler - Inner Joint PinSize48.6 mm or 1 1/2"Weight570 gramsThickness2.5 ... offer all range of drop forged and pressed scaffolding couplers/clamps, such as double/fixed coupler, swivel coupler, fixed/swivel ... beam/grider coupler, putlog coupler, plank coupler, sleeve coupler, joint pin, single coupler, etc.+We also provide standard, ledger, ...