Bolt types: Heavy Hex Bolt /Structure Bolt

Standard:ASTM A193, A194, A307, A320, A325/A325M, A354, A490/A490M  DIN6419  DIN7990   ISO7411/7412  EN14399  BS1769 BS4395 

Diameter.: 1/2"-1 1/2"    M12-M64

Length:1 1/4"-8"(-250MM)

Material: Carbon steel /SS304/SS316/Brass

Surface treatment: Plain ,Black oxygenation, HDG ,ZP

Class:~12.9