High-strength chromium-molybdenum alloy steel stud bolts with heavy hex nuts for flange connections in high-temperature and high-pressure service.

Key Specifications:

• Stud Material: ASTM A193 Grade B7
• Nut Material: ASTM A194 Grade 2H
• Thread: Unified (UNC/UNF) or Metric
• Size Range: M12 to M64 (1/2" to 2-1/2")
• Length: As per ASME B16.5 or custom
• Standards: ASME B16.5, DIN 975, DIN 976, BS 3692
• Coating: Plain, zinc plated, PTFE coated, hot-dip galvanized

Temperature Rating: -29°C to 540°C

Available Grades:

• B7: General high-temp service
• B7M: Low-temperature service
• B8 (Class 1): 304 stainless
• B8M (Class 1): 316 stainless
• L7: Low-temperature carbon steel

Applications:

• Refinery flange connections
• Pressure vessel bolting
• Power plant piping
• Chemical plant equipment

Complete Sets Available:

• Studs + 2H nuts + washers
• Custom lengths and quantities

Documentation:

• Mill test certificates
• Mechanical property reports