S-92865A914 1"-8 x 2 1/2" 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 under high-stress conditions, reducing the risk of fastener failure in demanding applications.
- Superior corrosion resistance from zinc plating protects against rust and environmental degradation, extending service life in harsh industrial settings.
- High hardness rating (Rockwell C25) provides excellent wear resistance and durability, maintaining thread integrity through repeated use.
- Coarse UNC threading offers faster installation and superior holding power in various materials, improving assembly efficiency.
- Class 2A thread fit ensures consistent, reliable engagement with compatible nuts and threaded holes, minimizing cross-threading risks.
- Full threading along the 2½" length allows for maximum adjustability and secure fastening across the entire shank.
- External hex drive design enables high-torque installation with common tools, facilitating quick and secure assembly.
Professional Applications & Engineering Value
This Grade 5 steel hex head screw delivers critical performance where structural integrity is paramount. The combination of 120,000 psi tensile strength and Rockwell C25 hardness makes it ideal for heavy machinery, construction equipment, and structural steel applications where vibration and dynamic loads are common. The 1"-8 UNC coarse thread provides superior pull-out resistance in both metal and wood assemblies, while the zinc plating offers essential corrosion protection in outdoor or humid environments. Engineered to prevent stripping and maintain clamp force, these fully threaded hex screws solve common fastening failures in industrial maintenance, automotive framing, and infrastructure projects where reliability cannot be compromised.
Specification Summary & Compliance
Manufactured to precise Class 2A thread fit tolerances with UNC coarse thread spacing (1"-8). Complies with ASME B18.2.1 and SAE J429 Grade 5 specifications for dimensional accuracy and mechanical properties. Meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental compliance standards, ensuring safe use across regulated industries.
