S-92210A319 10-32 x 2 1/4" ASME B18.3, ASTM F879 Stainless Steel Hex Drive Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction and passivated finish for extended service life in harsh environments
• Precise thread engagement with Class 3A fit and UNF fine threads ensuring reliable, vibration-resistant fastening in critical applications
• High mechanical strength delivering 70,000 psi tensile strength and Rockwell B55 hardness for demanding industrial loads
• Efficient installation through hex drive design providing superior torque transmission and reduced tool slippage
• Optimal flush mounting with standard 82° countersink angle and flat head profile for seamless surface integration
• Full threading coverage across the 2 1/4" length enabling maximum grip strength and adjustment flexibility
• Regulatory compliance meeting ASME B18.3 manufacturing standards and environmental regulations (RoHS 3, REACH)

Professional Applications & Engineering Value

These 10-32 UNF flat head screws deliver exceptional engineering value in precision assembly applications where corrosion resistance and high-strength fastening are critical. The combination of 18-8 stainless steel material with passivated finish provides superior protection against chemical exposure and atmospheric corrosion, making them ideal for marine, chemical processing, and food-grade equipment. The Class 3A thread fit with UNF fine threading ensures precise tolerance control in machinery, aerospace components, and electronic enclosures where vibration resistance is paramount. The hex drive design allows for high-torque installation in confined spaces, while the 82° countersink angle provides flush mounting for aerodynamic and safety-critical surfaces. These fully threaded screws maintain consistent 70,000 psi tensile strength throughout their length, offering reliable performance in structural applications and repeated disassembly scenarios.

Specification Summary & Compliance

Manufactured to ASME B18.3 specifications with Class 3A thread fit precision and UNF fine thread spacing. The screws feature complete 10-32 thread size compatibility and maintain dimensional accuracy per industrial standards. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations ensures safe use across global markets. The 18-8 stainless steel composition with passivated finish meets corrosion resistance requirements while the mechanical properties including Rockwell B55 hardness and 70,000 psi tensile strength validate performance for critical fastening applications.