S-91858A251 10-24 x 1 1/2" ASME B18.6.3 Stainless Steel Slotted Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 Stainless Steel construction and passivated finish, ideal for harsh industrial environments
• Exceptional mechanical strength delivering 70,000 psi tensile strength and Rockwell B80 hardness for reliable load-bearing performance
• Precision thread engagement with Class 2A fit and UNC coarse threads ensuring secure fastening and vibration resistance
• Flush mounting capability featuring standard 82° countersink angle for smooth surface finishes in assembled products
• Full-length threading providing maximum grip along the entire 1 1/2" length for enhanced holding power
• Industry-standard compliance meeting ASME B18.6.3 specifications for consistent quality and interchangeability
• Environmental responsibility with RoHS 3 and REACH compliance for safe use in regulated applications

Professional Applications & Engineering Value

This 10-24 UNC flat head screw in 316 Stainless Steel addresses critical engineering challenges in corrosive environments where fastener failure can compromise entire systems. The combination of passivated finish and marine-grade stainless steel provides exceptional protection against chemical exposure and saltwater corrosion, making it ideal for marine equipment, chemical processing plants, and food processing machinery. The fully threaded design ensures maximum thread engagement in thin materials and blind holes, while the Class 2A thread fit maintains precise tolerances for repeated assembly and disassembly. The slotted drive accommodates standard tools for efficient installation in confined spaces, and the standardized 82° countersink angle creates seamless flush mounting in precision applications from electronic enclosures to industrial machinery.

Specification Summary & Compliance

This flat head machine screw maintains Class 2A thread fit per UNC standards with precise dimensional accuracy. Manufacturing follows ASME B18.6.3 specifications ensuring consistent quality and performance. The screw is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming environmental safety and regulatory adherence for global industrial applications.