S-92620A286 1/2"-13 x 5/8" ASME B18.2.1, SAE J429 High-Strength Grade 8 Steel Hex Head Screws
High-Strength Grade 8 Steel Hex Head Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Exceptional tensile strength of 150,000 psi ensures reliable performance in high-stress applications, reducing the risk of fastener failure.
- Superior corrosion resistance from zinc yellow-chromate plating extends service life in harsh industrial environments, minimizing maintenance needs.
- High hardness rating (Rockwell C33) provides excellent wear resistance, maintaining thread integrity under repeated use.
- Coarse UNC threading with Class 2A fit allows for quick assembly and secure fastening, improving installation efficiency.
- External hex drive design offers easy torque application with standard tools, enhancing workplace productivity.
- Full threading along the 5/8" length ensures maximum grip and load distribution across connected materials.
- Compliance with industry standards including ASME B18.2.1 and SAE J429 guarantees consistent quality and interoperability.
Professional Applications & Engineering Value
Engineered for demanding environments, this Grade 8 hex head screw combines high-strength steel with a zinc yellow-chromate finish to address common industrial challenges like vibration loosening and corrosive wear. The UNC coarse thread design ensures rapid installation in structural applications, while the external hex drive allows for high torque application without stripping. Ideal for heavy machinery, construction equipment, and automotive assemblies, it provides reliable fastening under extreme loads, reducing downtime and replacement costs. Its fully threaded configuration enhances clamping force distribution, making it a preferred choice for critical industrial applications requiring superior mechanical properties and long-term durability.
Specification Summary & Compliance
This fastener meets precise dimensional standards with Class 2A thread fit and UNC coarse spacing, manufactured in accordance with ASME B18.2.1 and SAE J429 specifications. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material restrictions adherence for global industrial use.
