... .weight:990g 3.thickness:body3mm/base20mm Pressed Beam Clamp/Grider Coupler/Pressed Light Duty Beam CouplerSize48.6 mm or 1 1/2 ... /clamps, such as double/fixed coupler, swivel coupler, fixed/swivel beam/grider coupler, putlog coupler, plank coupler, sleeve coupler, joint pin ... be golden/silver zinc galvanized or hot dipped galvanized. Pressed Beam Clamp