S-91735A191 8-32 x 5/16" ASME B18.6.3 Stainless Steel Pan Head Phillips Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction, ideal for harsh environments and chemical exposure
• Exceptional mechanical strength with 80,000 psi tensile strength and Rockwell B85 hardness for reliable performance under high stress
• Enhanced durability and longevity through passivated surface finish, providing improved resistance to wear and oxidation
• Quick and efficient installation with Phillips No. 2 drive and coarse UNC threading, reducing assembly time and labor costs
• Precise thread engagement with Class 2A thread fit, ensuring secure fastening and vibration resistance in industrial applications
• Broad regulatory compliance meeting ASME B18.6.3 standards, RoHS 3, and REACH for global supply chain compatibility
• Versatile rounded pan head design offering a low-profile finish while providing ample drive engagement for various assembly needs

Professional Applications & Engineering Value

This 8-32 UNC rounded pan head screw delivers critical engineering value in demanding industrial environments where corrosion resistance and mechanical reliability are paramount. Manufactured from 316 stainless steel with a passivated finish, it effectively solves common failure points in chemical processing, marine equipment, and food processing machinery where exposure to moisture and aggressive substances causes standard fasteners to deteriorate. The fully threaded coarse spacing design ensures maximum grip strength in softer materials and faster installation across production lines, while the Phillips No. 2 drive provides familiar, efficient torque transfer. These machine screws maintain structural integrity in high-vibration applications, making them ideal for OEM manufacturing, electrical enclosures, and precision equipment assembly where long-term performance cannot be compromised.

Specification Summary & Compliance

This screw maintains Class 2A thread fit tolerance per UNC standards with 5/16" length and coarse thread spacing. Manufacturing specifications strictly adhere to ASME B18.6.3 dimensional requirements. The product is fully compliant with RoHS 3 (2015/863/EU) restrictions on hazardous substances and REACH (EC 1907/2006) regulations for chemical safety, ensuring environmental responsibility and global market acceptance.