ASTM A193 Grade B16 Hex Cap Screws

High Temperature Bolting

ASTM A193 Grade B16 Hex Cap Screws

ASTM A193 Grade B16 Hex Cap Screws Boltport fasteners manufactures ASTM A193 Grade B16 hex cap screws to ASME B18.2.1, B18.2.3.1M, DIN 933, ISO 4017 and UNI 5739 standards, with coarse, fine and extra fine threads. We produce both metric and imperial sized hex cap screws to ASTM A193 Grade B16 specification.

These b16 hex cap screws or full threaded 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 Cap Screws, please contact our sales team at

Hex Cap Screw Sizes & Thread Specifications

Metric Sizes M2 to M152
Inch Sizes ¼" to 4"
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 Cap Screw Standards

Imperial Metric
933 4017 B18.2.1 B18.2.3.1M 5739
960 8765 5738

Applicable Coatings