S-90273A261 10-24 x 4" ASME B18.6.3 Steel Phillips Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction for extended service life in demanding industrial environments
• Exceptional mechanical strength with 60,000 psi tensile strength and Rockwell B70 hardness for reliable load-bearing performance
• Precision thread engagement with Class 2A thread fit ensuring consistent fastening and vibration resistance
• Optimized flush mounting with 82° countersink angle and standard flat head profile for seamless surface integration
• Enhanced drive efficiency through Phillips No. 2 drive design reducing cam-out during installation
• Versatile coarse threading with 10-24 UNC configuration providing rapid assembly in various materials
• Regulatory compliance assurance meeting ASME B18.6.3, RoHS 3, and REACH standards for global industrial applications

Professional Applications & Engineering Value

These 10-24 UNC flat head screws deliver critical engineering solutions for industrial assembly challenges. The zinc-plated steel construction provides essential corrosion protection in manufacturing environments, while the partially threaded design offers optimal grip length for secure fastening in metal fabrication, machinery assembly, and equipment manufacturing. The 82° countersink angle ensures flush surface mounting in precision applications, eliminating protrusion issues. With coarse UNC threading and Class 2A thread fit, these screws resist loosening under vibration and enable quick installation in steel frameworks, aluminum enclosures, and industrial components. The combination of 60,000 psi tensile strength and Rockwell B70 hardness ensures reliable performance in structural applications where mechanical stress is a constant concern.

Specification Summary & Compliance

These flat head screws maintain precision Class 2A thread fit tolerances with 10-24 UNC coarse threading and 4" length with minimum 1½" thread length. Manufacturing complies with ASME B18.6.3 specifications for dimensional accuracy and performance standards. Full regulatory compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) requirements, ensuring environmental safety and material restrictions are met for industrial distribution and use.