ASTM A193 Grade B16 Hex Bolts

High Temperature Bolting

ASTM A193 Grade B16 Hex Bolts

ASTM A193 Grade B16 Hex Bolts Boltport fasteners manufactures ASTM A193 Grade B16 hex bolts to ASME B18.2.1, B18.2.3.5M, DIN 931, ISO 4014 and UNI 5737 standards, with coarse, fine and extra fine threads. We produce both metric and imperial sized hex head bolts to ASTM A193 Grade B16 specification.

These b16 hex bolts can be used in high tensile bolting in boilers, pressure vessels, valves, pipeline flanges and fittings, intended for use in high-pressure or high-temperature service range between -20ºF (-30ºC) to +1100ºF (+593ºC).

Visit Specification page to find information on ASTM A193 Grade B16 chemical composition, mechanical properties, tensile strength, yield strength, hardness, heat treatment, thermal expansion, raw material properties, product marking, and referenced product standards, etc.,

For a quick quote on ASTM A193 Grade B16 Hex Bolts, please contact our sales team at

Hex Bolt Sizes & Thread Specifications

Metric Sizes M2 – M152
Inch Sizes ¼" 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

Hex Bolt Standards

DIN ISO Imperial Metric UNI
931 4014 B18.2.1 B18.2.3.5M 5737
601 4016 -- -- --

Applicable Coatings