Bolts Nuts

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.