S-92865A880 7/8"-9 x 2" ASME B18.2.1, SAE J429 Medium-Strength Grade 5 Steel Hex Head Screws
Medium-Strength Grade 5 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 120,000 PSI ensures reliable performance in demanding applications, preventing fastener failure under heavy loads.
- Superior corrosion resistance from the zinc plating extends service life and maintains integrity in harsh or outdoor environments.
- High-strength Grade 5 steel construction with Rockwell C25 hardness provides excellent durability and resistance to wear and deformation.
- Coarse UNC thread design offers faster installation and superior holding power in a wide range of materials.
- Precise Class 2A thread fit ensures smooth assembly and consistent clamping force, reducing the risk of cross-threading.
- Full threading along the 2-inch length allows for maximum grip and adjustability in various material thicknesses.
- External hex drive and hex head facilitate easy installation and high-torque tightening with standard tools.
Professional Applications & Engineering Value
Engineered for heavy-duty industrial applications, this 7/8"-9 UNC hex head screw delivers critical performance where reliability is non-negotiable. The Grade 5 steel material, combined with a zinc plated finish, provides robust resistance to environmental factors, making it ideal for construction, machinery assembly, and structural frameworks. The coarse thread design ensures quick, secure fastening in wood, metal, and composite materials, reducing installation time while maintaining high tensile strength. Its fully threaded configuration and external hex drive offer versatility and ease of use, solving common issues of slippage and insufficient clamping force in high-strength fastening scenarios.
Specification Summary & Compliance
This hex head screw features a 7/8"-9 UNC coarse thread with Class 2A thread fit for precise dimensional accuracy. It meets ASME B18.2.1 and SAE J429 specifications, ensuring consistent manufacturing quality. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, guaranteeing environmental safety and regulatory adherence for industrial use.
