LNG Fasteners

ASTM A320 Grade L7 Alloy Steel Heavy Hex Bolts
ASTM A320 Grade L7 alloy steel heavy hex bolts are impact-tested, quenched-and-tempered fasteners for low-temperature pressure vessels, valves, flanges, fittings and industrial equipment.
ASTM A320 Grade L7M Alloy Steel Heavy Hex Bolts
ASTM A320 Grade L7M alloy steel heavy hex bolts combine low-temperature impact requirements with restricted hardness for pressure-equipment joints where the project specifies L7M.