S-92865A689 7/16"-14 x 5 1/2" 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, extending service life in demanding industrial environments
• Optimized installation efficiency with external hex drive design providing secure tool engagement and torque transmission
• Precision thread compatibility featuring Class 2A thread fit for consistent engagement and reduced cross-threading risks
• Enhanced mechanical durability from Rockwell C25 hardness, maintaining structural integrity under repeated loads
• Versatile coarse threading (UNC) enabling faster assembly and better performance in softer materials
• Full-threaded design ensuring maximum grip length and uniform stress distribution along the entire fastener

Professional Applications & Engineering Value

This Grade 5 steel hex head screw delivers critical engineering solutions for industrial assembly challenges where vibration resistance and structural integrity are paramount. The zinc plated finish provides essential corrosion protection for equipment exposed to harsh environments, while the coarse UNC threading ensures rapid installation and superior holding power in structural steel, heavy machinery, and transportation equipment applications. The external hex drive configuration allows for high-torque installation with standard tools, making it ideal for maintenance operations and production line assemblies requiring consistent, reliable fastening performance. With full threading along its 5-1/2" length, this fastener maintains uniform clamping force across extended joint surfaces.

Specification Summary & Compliance

Manufactured to ASME B18.2.1 and SAE J429 Grade 5 specifications, this hex head screw features Class 2A thread fit tolerances for precise engagement. The UNC 7/16"-14 coarse thread configuration ensures compatibility with standard components, while the zinc plating meets RoHS 3 (2015/863/EU) compliance requirements. The fastener's mechanical properties include Rockwell C25 hardness and 120,000 psi tensile strength, providing verified performance for industrial applications demanding certified quality standards.