ASTM A193 Grade B16 Heavy Hex Bolts

High Temperature Bolting

ASTM A193 Grade B16 Heavy Hex Bolts

ASTM A193 Grade B16 Heavy Hex Bolts Boltport manufacture ASTM A193 Grade B16 heavy hex bolts to ASME B18.2.1, B18.2.3.6M. B18.2.3.7M, DIN 6914, ISO 7412, UNI 5712 and BS 1769 standards, with coarse, fine and extra fine threads. We produce both metric and imperial sized heavy hex bolts to ASTM A193 Grade B16 specification.

These b16 heavy 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 Heavy Hex Bolts, please contact our sales team at

Heavy Hex Bolt Sizes & Thread Specifications

Metric Sizes M12 to M152
Inch Sizes 1/2" 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

Heavy Hex Bolt Standards

Imperial Metric
6914 7411 B18.2.1 B18.2.3.7M 5712

Applicable Coatings