Industrial Bolting & Fasteners
High-grade structural fasteners engineered for extreme-temperature and high-pressure flange assemblies.
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
Industrial Bolts & Nuts
Mechanical Assembly
Comprehensive range of structural hex bolts and heavy hex nuts designed to match the tensile strength of high-pressure pipe components.
- Hex Bolts: Grade 8.8, 10.9, 12.9, and ASTM A325 structural bolts
- Heavy Hex Nuts: ASTM A194 Grade 2H, Grade 4, and Grade 7 (paired with B7/L7 studs)
- Material: Carbon Steel, Stainless Steel (304/316), and B7 Alloy
- Finish: Yellow Zinc, Phosphate, Cadmium, or Fluoropolymer coatings
- Security: Precision-cut threads for consistent torque-tension performance
