... 3.size:48.6mm 4.surface:golden/silver zinc galvanized Scaffolding Coupler - Inner Joint PinSize48.6 mm or 1 1 ... .+We offer all range of drop forged and pressed scaffolding couplers/clamps, such as double/fixed coupler, swivel coupler, fixed/swivel ... pin, single coupler, etc.+We also provide standard, ledger, transom, scaffolding ladder, adjustable u-head, universaljack, base plate, and accessories such ...