Heavy Hex Structural Bolt ASTM A325 with H. D. G.1). Standard: ASTM A325 bolt, ASTM A490 bolt, DIN6914 bolt2). Material: Carbon steel, alloy steel, etc.3). Surface: Plain, black, ZP, ZY, H. D. G. etc. ...
Ningbo S&D Metalwork Co.,ltd
Main Products: Fasteners, A325 Structural Bolt, A193 B7 Threaded Rod... More