S-91253A624 3/8"-16 x 1" ASTM F835 Alloy Steel Hex Drive Flat Head Screws

Key Features & Benefits at a Glance

• Exceptional durability with Black-Oxide Alloy Steel construction providing superior corrosion resistance for harsh industrial environments
• Maximum load-bearing capacity with 130,000 PSI tensile strength and Rockwell C39 hardness for heavy-duty applications
• Precision installation through Class 3A thread fit ensuring tight, secure fastening with minimal tolerance variation
• Optimized flush mounting with 82° countersink angle and standard flat head profile for seamless surface integration
• Enhanced torque transmission via 7/32" hex drive design preventing cam-out and enabling high-torque applications
• Reliable performance with fully threaded UNC coarse spacing for faster installation and superior holding power
• Industry compliance assurance meeting ASME B18.3 and ASTM F835 standards for consistent quality and safety

Professional Applications & Engineering Value

These 3/8"-16 UNC flat head screws deliver critical engineering solutions where flush surface mounting and high-strength fastening are paramount. The Black-Oxide Alloy Steel construction provides exceptional corrosion resistance, making them ideal for manufacturing equipment, heavy machinery, and structural assemblies exposed to demanding conditions. The Class 3A thread fit ensures precise engagement with mating components, eliminating play and vibration-induced loosening in dynamic applications. With 130,000 PSI tensile strength and fully threaded coarse spacing, these industrial screws offer rapid installation and superior load distribution, significantly reducing assembly time while maintaining joint integrity under extreme mechanical stress.

Specification Summary & Compliance

Manufactured to exacting standards with Class 3A thread fit precision and UNC coarse thread spacing for optimal performance. Compliant with ASME B18.3 and ASTM F835 specifications, ensuring dimensional accuracy and mechanical reliability. Meets environmental regulations including RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, confirming safe use in regulated industries. The 82° countersink angle and standard flat head profile maintain consistent flush mounting across applications.