S-91253A468 10-24 x 5" ASME B18.3 Alloy Steel Hex Drive Flat Head Screws

Key Features & Benefits at a Glance

• Exceptional tensile strength of 130,000 psi ensures reliable performance in demanding industrial applications
• Precision Class 3A thread fit provides superior engagement and vibration resistance in critical assemblies
• Black-oxide surface treatment on alloy steel offers enhanced corrosion resistance for extended service life
• 82° countersink angle allows for flush mounting in standard applications, improving aesthetics and safety
• Partially threaded design combines secure clamping with easier installation in deep or blind holes
• Hex drive compatibility with 1/8" tools enables high-torque installation without cam-out issues
• Full compliance with industry standards including ASME B18.3 and ASTM F835 ensures consistent quality and reliability

Professional Applications & Engineering Value

Engineered for heavy-duty industrial applications, these 10-24 UNC flat head screws deliver exceptional performance where reliability is critical. The black-oxide alloy steel construction provides superior corrosion resistance while maintaining the 130,000 psi tensile strength needed for structural applications. The Class 3A thread fit ensures precise engagement in machinery, equipment manufacturing, and automotive assemblies, reducing the risk of vibration-induced loosening. The 82° countersink angle and flat head profile create seamless finishes in metal fabrication and woodworking projects. These partially threaded screws are particularly valuable in applications requiring both secure fastening and adjustment capability, making them ideal for industrial machinery, heavy equipment, and structural frameworks where durability and precision are paramount.

Specification Summary & Compliance

This 10-24 UNC flat head screw features Class 3A thread fit with coarse thread spacing and right-hand threading. Manufactured to exacting ASME B18.3 and ASTM F835 specifications, ensuring dimensional accuracy and performance consistency. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, making it suitable for global industrial applications. With a Rockwell C39 hardness rating and precise 5" length with 7/8" minimum thread length, these screws meet the highest standards for industrial fastening solutions.