... .light duty beam coupler with pressed clamp body/forged base 2.weight:990g 3.thickness:body3mm/base20mm Pressed Beam Clamp/Grider ... Coupler/Pressed Light Duty Beam ... , such as double/fixed coupler, swivel coupler, fixed/swivel beam/grider coupler, putlog coupler, plank coupler, sleeve coupler, joint ...