S-90780A538 1/4"-20 x 1/2" ASTM F468, MIL-S-1222 Nickel Alloy Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance from 400 Nickel material, ideal for harsh industrial environments
• High tensile strength of 80,000 psi ensures reliable performance under heavy loads
• Fully threaded design provides maximum grip and holding power across the entire length
• Coarse UNC threading with Class 2A fit enables quick installation and secure fastening
• External hex drive with 7/16" head width offers superior torque transmission and tool compatibility
• Rockwell B80 hardness maintains structural integrity and prevents deformation during installation
• Comprehensive compliance with ASTM F468, MIL-S-1222, RoHS 3 and REACH ensures quality and environmental safety

Professional Applications & Engineering Value

This 1/4-20 UNC hex head screw delivers exceptional engineering value through its 400 Nickel construction and fully threaded design, specifically engineered to address common industrial challenges. The combination of 80,000 psi tensile strength and corrosion-resistant properties makes it ideal for demanding applications where reliability is critical, including marine equipment, chemical processing machinery, and outdoor industrial installations. The coarse thread configuration with Class 2A thread fit ensures rapid assembly while maintaining precise tolerances, reducing installation time without compromising security. The external hex drive provides excellent torque transfer, preventing tool slippage and damage to the fastener head during high-torque applications. These features collectively solve critical issues of fastener failure, corrosion degradation, and installation efficiency in professional settings.

Specification Summary & Compliance

This hex head screw maintains precise Class 2A thread fit tolerances with UNC coarse threading (1/4"-20) and features a 1/2" length with 7/16" head width. Manufacturing complies with ASTM F468 specifications and MIL-S-1222 standards, ensuring consistent quality and performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, confirming its suitability for global industrial applications with strict chemical substance restrictions.