S-92865A656 3/8"-16 x 8" ASME B18.2.1, SAE J429 Medium-Strength Grade 5 Steel Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional load-bearing capacity with 120,000 psi tensile strength for reliable performance in high-stress applications
• Superior corrosion resistance through zinc plating that extends service life in demanding industrial environments
• Optimized installation efficiency with external hex drive design providing secure tool engagement and torque transmission
• Consistent thread engagement through Class 2A thread fit ensuring precise assembly and vibration resistance
• Enhanced durability from Rockwell C25 hardness that maintains structural integrity under repeated stress
• Broad compatibility with coarse UNC threading that simplifies mating with standard components
• Full-length fastening capability through complete threading along the 8" length for maximum grip range

Professional Applications & Engineering Value

This Grade 5 hex head screw delivers critical engineering solutions for industrial assembly challenges where high tensile strength and reliable fastening are paramount. The zinc plated steel construction provides essential corrosion protection in manufacturing facilities, construction sites, and heavy equipment applications. The coarse UNC threading with Class 2A fit ensures rapid installation while maintaining precise thread engagement, reducing assembly time and preventing cross-threading issues. The external hex drive design accommodates standard tools for secure torque application, making these fully threaded fasteners ideal for structural connections, machinery assembly, and infrastructure projects requiring 8 inch length coverage. The combination of Rockwell C25 hardness and 120,000 psi tensile strength provides the durability needed for vibration-prone environments and dynamic loading conditions.

Specification Summary & Compliance

Manufactured to ASME B18.2.1 and SAE J429 Grade 5 specifications with Class 2A thread fit tolerances ensuring dimensional accuracy. The 3/8"-16 UNC coarse thread configuration follows standardized inch system measurements. Compliant with RoHS 3 (2015/863/EU) environmental regulations, confirming restricted substance compliance for international industrial applications. The zinc plated finish provides consistent corrosion protection while maintaining the mechanical properties required for Grade 5 performance standards.