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Studbolts

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Crafted from high-quality bars, our studbolts and nuts come in plain, Mastercote PTFE coated, cadmium, zinc nickel plated, galvanized, and other specialized coatings, including electroless nickel plating.

Why Mastercote®?

  • Unrivaled Corrosion Resistance

    Outperforms traditional fluoropolymer coatings, ensuring long-term durability.

  • Low Friction, Self-Lubricating

    Reduces make-up and break-out torques, preventing galling.

  • High-Temperature Stability

    Withstands hydrogen sulfide exposure at 121°C (250°F) under 2,000 psi without degradation.

  • Optimized for Offshore & Subsea Use

    Ideal for extreme environments, ensuring joint integrity under dynamic loads.

Extensive Stock Availability

We maintain a comprehensive inventory of ASTM-certified fasteners, ready for immediate deployment:

  • ASTM A193 – Imperial: 3/8” to 4” Ø, Metric: M12 to M52
  • ASTM A320 L7 – ½” to 4”
  • ASTM A193 B16 – ½” to 4” Ø
  • ASTM A193/A320 B8 & B8M Class 1 & 2 – Stainless Steel (SS304 & SS316)

In-House Furnace Processing & Certification

We manufacture B7M/2HM and L7M/Gr 7M fasteners in-house. The components are then oiled, grit blasted, plated, or Mastercote finished, ensuring full traceability, rigorous testing, and compliance with international standards.