ASTM A453 Grade 660 Bolts

High Temperature Stainless Steel Fasteners

ASTM A453 Grade 660 Bolts

ASTM A193 Grade B16 Bolts Boltport offers ASTM A453 Grade 660 Bolts in Class A, B, C & D, manufactured to DIN 931, ISO 4014, ASME B18.2.1 UNI 5737, etc., and many other standards, in metric and inch sizes with UNC, UN, UNF, UNEF, ISO, BSW & BSF threads. Grade 660 bolts are available in full thread, part thread with hex head, hex socket head, slotted hex, slotted flat countersunk head and custom design.

ASTM A453 Grade 660 Bolts
Tensile Class A B C D

Bolt Sizes & Thread Specifications

Metric Sizes M6 to M152
Inch Sizes ΒΌ" to 8"
Metric Threads ISO, ASME
Imperial Threads ASME, BSW, BSF
Thread Standards ISO 68-1, ISO 268, ISO 724, ASME B1.1, ASME B1.13M, BS 84, BS 3643

Bolt Standards

Imperial Metric
Hex Bolts 931 4014 B18.2.1 B18.2.3.5M 5737
Heavy Hex Bolts 6914 7411 B18.2.1 B18.2.3.6M 5712
Hex Socket Head Bolts 912 4762 B18.3 B18.3.1M 5931
Stud Bolts 976 -- B18.31.2 B18.31.1M 6610
Countersunk Bolts 7991 10642 B18.3 B18.3.1M 5933