S-92210A170 10-32 x 1 5/8" 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
• Precision thread engagement with Class 3A fit and UNF fine threading ensures secure, vibration-resistant fastening
• High-strength performance delivering 70,000 psi tensile strength and Rockwell B55 hardness for demanding applications
• Optimal flush mounting with standard 82° countersink angle flat head design for smooth surface finishes
• Secure installation facilitated by hex drive design providing positive torque transmission and reduced cam-out risk
• Full regulatory compliance meeting ASME B18.3 specifications, RoHS 3, and REACH environmental standards
• Complete threading coverage along the 1-5/8" length ensures maximum grip and load distribution

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 18-8 stainless steel composition combined with passivated finish provides superior protection against chemical exposure and environmental factors, making them ideal for marine, chemical processing, and food equipment applications. The Class 3A thread fit with UNF fine threading ensures precise engagement in tapped holes, reducing the risk of vibration-induced loosening while maintaining consistent clamping force. The flat head design with standard 82° countersink angle allows for flush mounting in precision machinery, aerospace components, and electronic enclosures where surface profile integrity is paramount. The combination of 70,000 psi tensile strength and Rockwell B55 hardness provides reliable performance in high-stress applications while maintaining sufficient ductility for shock absorption.

Specification Summary & Compliance

This 10-32 UNF flat head screw features precision Class 3A thread fit with right-hand orientation and fine thread spacing, manufactured to exacting dimensional standards. The fastener meets ASME B18.3 specifications (ASTM F879) for dimensional accuracy and mechanical properties. Environmental compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring restriction of hazardous substances. The fully threaded 1-5/8" length provides complete engagement capability, while the hex drive design (1/8" drive size) ensures reliable installation torque transmission.