Heavy Hexagonal Bolt for Steel Structure
Standard:GB1228-1231 ISO7412 DIN6914-6916......
Grade:8.8S 10.9S 10.9HV
Size:M12-M36
Surface Treatment:Plain,black,zinc plated,Hot Dip Galvanised
Material:Carbon Steel,Alloy Steel
Standard:GB1228-1231 ISO7412 DIN6914-6916......
Surface Treatment:Plain,black,zinc plated,Hot Dip Galvanised