... 990g 3.thickness:body3mm/base20mm Pressed Beam Clamp/Grider Coupler/Pressed Light Duty Beam CouplerSize48.6 mm ... coupler, 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 ... hex nut, flange nut.+Our pressed fixed/swivel clamp has SUV certificate.+The surface finish can be ...