... Pressed steel one/two piece line arm Hot dipped galvanized ASTM 1-7/8"x1-5/8", ... ExtensionWe company supply various fencing fittings, including barb wire arm, post cap, sleeve, tension band, brace band, ... galvanized up to ASTMWall thickness: 1.5, 1.8, 1.9, 2.0, 2.5mm Arm length: 355mm, 420mm, 500mm ... , 600mm Type 1. barb wire arms 45°--one piece line arm ...