ASTM A320 L7 Stud Bolt

ASTM A320 Grade L7 Stud Bolt is high-strength, alloy steel fastener designed for low-temperature service (down to -150°F / -101°C) in piping, valves, and pressure vessels, requiring mandatory Charpy V-Notch impact testing. They are typically paired with ASTM A194 Grade 7 or 4 nuts.