... size:48.6mm 4.surface:golden/silver zinc galvanized Scaffolding Coupler - Inner Joint PinSize48.6 mm or 1 1/2"Weight570 ... plank coupler, sleeve coupler, joint pin, single coupler, etc.+We also provide standard, ledger, transom, scaffolding ladder, adjustable u-head, universaljack ... bolt, hex nut, flange nut.+Our pressed fixed/swivel clamp has SUV certificate.+The surface finish can be golden/silver ...