Hwashin Bolt Industry precisely supplies Bonnet Bolts optimized for high-pressure equipment such as Cameron Subsea and drilling systems in compliance with API 20E specifications. These bolts serve as critical fastening components for flange connections and drilling module assembly.

Key Role of Bonnet Bolts

Featuring a double-ended threaded structure, bonnet bolts are specifically designed for high-pressure flanges (wellhead BOP, Christmas Tree, and high-pressure modules) that require frequent disassembly and reassembly. They maintain stable clamping force even under high-temperature and high-pressure environments.

Hwashin Bolt Industry’s Bonnet Bolt Technology

High-strength alloy steel materials are processed with API 20E-compliant heat treatment to ensure durability under extreme conditions. Precision grinding of special thread profiles, including thread relief and taper machining, guarantees dimensional accuracy. Customized single-order production enables immediate response to client-specific specifications. As essential components directly related to safety—such as wellhead BOPs, Christmas Trees, and high-pressure flange connections—Hwashin’s bonnet bolts are backed by rigorous quality control and API-certified technology, ensuring the highest level of reliability.