M3 Hex Nut Class 5 Zinc Black Passivate

Hex Nut Class 5 Zinc Black Passivate is engineered for structural and high-tensile bolted joints, with grade compliance, accurate thread cutting and a corrosion-rated finish to suit the assembly environment. Manufactured to recognised standards including ISO, DIN, ANSI and Australian Standards for confident specification on structural and mechanical engineering work. Suited to structural steel construction, plant and machinery maintenance, marine and coastal fastening, automotive and trailer assembly, and general engineering bolted joints. Hex nuts, lock nuts and couplers in the range pair with matched bolts and washers across the Hobson engineering fastener offering. Built to deliver reliable bolted joint performance through trade and industrial service