ASTM A193 Grade B7 heavy hex head bolts are high strength fasteners manufactured from heat treated alloy steel AISI 4140/4142, quenched and tempered. Dimensional specifications are governed by ASME B18.2.1. Grade markings consists of both the grade symbol "B7" and the manufacturer's identification mark. Inch series fasteners meeting ASTM A193 Grade B7 specifications are typically used in flange bolting applications. ASTM A193 covers the requirements for high temperature and high pressure bolting. Heavy hex head bolts have a larger head to increase the bearing surface and distribute the clamping load over a larger area. Bolts listed that are smaller than 1/2" diameter may be finished pattern bolts. A193 B7 hex bolts, as well as all thread stud bolts having diameters above 1" are most common 8UN (8 threads per inch) and are also available UNC (coarse thread).
ASTM A193 Grade B7 - Boltport Fasteners
Steel, B7, Heavy Hex Bolt - 1VZL4
ASTM A193 B7 Hex Bolts, Studs, & Threaded Rod
ASTM A193 Grade B7 - Boltport Fasteners
UNC A193-B7 Stud Bolts with A194-2H Heavy Hex Nuts - Derbo
Difference between Stud Bolts ASTM A193 B7 and ASTM A193 B7M
ASTM A194 2H Heavy Hex Bolts ASTM A193 Grade B7
ASTM A193 Grade B7 Bolts and SA 193 B7 Stud/ Threaded Rod/ Hex Bolt
ASTM A193 Grade B7 Heavy Hex Bolts,Teflon
ASTM A193 Grade B7 Specification - Hex Bolt & Stud - High Strength
ASTM A193 Grade B7 Bolts and SA 193 B7 Stud/ Threaded Rod/ Hex Bolt
Wholesale a193 b7 u bolt Made For Various Purposes On Sale
Description Heavy hex bolts have heads that are wider across flats and higher than standard hex bolts. B7 is a heat-treated chromium-molybdenum alloy
3/4-10 X 2-3/4 Heavy Hex Bolts, Grade B7 Steel, Plain, ASTM A193
