S-91773A145 6-32 x 5/16" ASME B18.6.3 Stainless Steel Round Head Phillips Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel and passivated finish for long-lasting performance in harsh environments
• Exceptional holding power with 100,000 psi tensile strength and Rockwell B100 hardness for reliable, vibration-resistant fastening
• Effortless installation via Phillips #2 drive and rounded head design, reducing assembly time and tool slippage
• Wide compatibility with UNC coarse 6-32 threading and Class 2A fit, ensuring consistent engagement in various materials
• Full-threaded design maximizes grip length and load distribution across the entire 5/16" shaft
• Regulatory peace of mind with compliance to ASME B18.6.3, RoHS 3, and REACH for global industrial use
• Optimized head geometry (0.26" diameter) provides secure seating without sharp edges, enhancing safety and aesthetics

Professional Applications & Engineering Value

These 6-32 UNC coarse thread screws deliver critical reliability in demanding industrial applications where vibration resistance and environmental durability are paramount. The 18-8 stainless steel construction combined with a passivated finish effectively counters corrosion from moisture, chemicals, and outdoor exposure, extending service life in machinery, electrical enclosures, and automotive assemblies. The fully threaded design ensures maximum thread engagement in thin materials or pre-tapped holes, while the Phillips drive and rounded head profile streamline high-volume assembly operations. Engineered to prevent loosening under dynamic loads, these screws solve common fastening failures in precision equipment and metal fabrication projects where consistent clamp load is essential.

Specification Summary & Compliance

Manufactured to exact Class 2A thread fit tolerances with UNC coarse threading (6-32 size, 0.138" diameter) and right-hand orientation. Complies with ASME B18.6.3 dimensional standards for rounded head screws. Meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use in regulated industries. All screws are fully threaded with a standardized 5/16" length and Rockwell B100 hardness verification.