... .thickness:3mm 4.surface: golden/silver zinc galvanized Plank ClampSize48.6 mm, Square or CircleWeight470 gramsThickness3 mmMaterialPressed ... swivel coupler, fixed/swivel beam/grider coupler, putlog coupler, plank coupler, sleeve coupler, joint pin, single coupler, etc ... .+We also provide standard, ledger, transom, scaffolding ladder, adjustable u-head, universaljack, base plate, and accessories ...