S-91253A677 7/16"-14 x 2" ASTM F835 Alloy Steel Hex Drive Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with black-oxide coating that protects against rust in demanding industrial environments
• Exceptional load-bearing capability with 130,000 psi tensile strength for heavy-duty applications requiring reliable fastening
• Precise thread engagement with Class 3A fit ensuring tight, secure connections in critical assemblies
• Enhanced driving efficiency with hex drive design providing maximum torque transfer and reduced cam-out
• Optimized flush mounting with standard 82° countersink angle for seamless surface integration
• Full-thread coverage along the 2" length for maximum grip strength and distribution of clamping force
• Environmental compliance assurance meeting RoHS 3 and REACH standards for sustainable manufacturing

Professional Applications & Engineering Value

These black-oxide alloy steel flat head screws deliver exceptional performance in industrial applications where vibration resistance and structural integrity are paramount. The UNC coarse threading provides rapid installation and superior holding power in materials prone to stripping, while the fully threaded design ensures consistent clamping force distribution across the entire fastener length. The hex drive system prevents tool slippage during high-torque applications, making them ideal for machinery assembly, structural frameworks, and heavy equipment manufacturing. The combination of Rockwell C39 hardness and ASTM F835 compliance guarantees reliable performance under extreme mechanical stress, solving common engineering challenges related to fastener failure in high-vibration environments.

Specification Summary & Compliance

This 7/16"-14 UNC flat head screw features precision Class 3A thread fit with right-hand threading and coarse thread spacing for optimal engagement. Manufactured to ASTM F835 specifications with dimensional accuracy including 0.844" head diameter and standard flat head profile. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industrial sectors while maintaining consistent quality standards.