S-92210A202 8-32 x 1 1/8" ASME B18.3, ASTM F879 Stainless Steel Hex Drive Flat Head Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with 18-8 stainless steel and passivated finish, ensuring long-term reliability in harsh environments.
• Superior load-bearing capability thanks to 70,000 psi tensile strength and Rockwell B55 hardness, preventing fastener failure under stress.
• Precise, secure fastening with Class 3A thread fit and UNC coarse threads, reducing cross-threading and ensuring consistent clamp load.
• Efficient installation and flush seating via hex drive (3/32") and 82° countersink angle, minimizing protrusion and speeding assembly.
• Full-thread engagement along the 1-1/8" length, providing maximum grip and vibration resistance in diverse materials.
• Regulatory peace of mind with compliance to ASME B18.3, RoHS 3, and REACH, meeting strict industrial and environmental standards.
• Broad compatibility with standard UNC coarse threading, making it ideal for replacement or new designs in machinery and equipment.

Professional Applications & Engineering Value

Engineered for demanding industrial settings, these 8-32 UNC flat head screws solve critical fastening challenges. The 18-8 stainless steel construction, enhanced by a passivated finish, resists oxidation and chemical exposure, extending service life in automotive, marine, or food processing equipment. The hex drive and 82° countersink enable quick, tool-friendly installation while maintaining a low-profile, aerodynamic surface—essential for assemblies where protrusion causes interference. With Class 3A thread fit and coarse threads, they ensure reliable engagement in soft metals or plastics, reducing the risk of stripping. This combination of high tensile strength and precise threading makes them a go-to for securing panels, brackets, and machinery components that face constant vibration or thermal cycling.

Specification Summary & Compliance

This screw adheres to Class 3A thread fit tolerances per UNC standards, with a diameter of 0.164" and coarse thread spacing. Manufacturing follows ASME B18.3 specifications, ensuring dimensional consistency. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006), confirming the absence of restricted hazardous substances. The fully threaded design and standard flat head profile guarantee uniform performance across applications.