Bolts, Nuts & Washers are available in different standards, finishes and sizes.
ASTM STANDARDS
BOLTS
NUTS
WASHERS
ASTM A325M
H.S.Hex Bolts – Grade 8.8
ASTM A563M
H.S. Hex Nuts – Class 10S
ASTM F436M
Hardened Flat Washers
ASTM A490M
H.S.Hex Bolts – Grade 10.9
ASTM A563M
H.S. Hex Nuts – Class 10S
ASTM F436M
Hardened Flat Washers
Coating: Black, Electro Galvanized, Hot Dip Galvanized for all standards except for ASTM A490 which is only supplied in Black. Coating of ASTM A490M is not recommended as per the standard.