Fastner
B7 & L7 Stud Bolts
Extreme Environments
Continuous thread stud bolts designed for flange connections in piping, valves, and pressure vessels where thermal expansion and contraction are critical factors.
- Grade B7: Alloy Steel, heat-treated for high-temperature service up to 450°C
- Grade L7: Alloy Steel, specifically quenched and tempered for low-temperature/cryogenic service
- Coating: Available in Plain, Zinc-Plated, Hot-Dip Galvanized, or PTFE/Xylan for corrosion resistance
- Standards: Fully compliant with ASTM A193 (B7) and ASTM A320 (L7)
- Dimensions: Full range of diameters from 1/2" to 4" with UNC/UN or Metric threads