1-1/4"-7 X 3" Heavy Hex Bolts, Grade B7 Steel, Plain, ASTM A193

Heavy hex bolts have heads that are wider across flats and higher than standard hex bolts.B7 is a heat-treated chromium-molybdenum alloy steel with a minimum tensile strength of 100ksi.ASTM A193 are high strength bolts for high temperature, high pressure...