S-91737A126 8-32 x 5/16" ASME B18.6.3 Stainless Steel Fillister Head Phillips Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction and passivated finish for long-lasting performance in harsh environments
• Exceptional mechanical strength with 80,000 psi tensile strength and Rockwell B85 hardness to withstand high-stress applications
• Reliable thread engagement through fully threaded UNC coarse threads with Class 2A fit for secure fastening and vibration resistance
• Optimized drive performance featuring No. 2 Phillips drive for efficient installation and reduced cam-out risk
• Enhanced clearance design with high, narrow fillister head profile providing superior countersinking capability
• Industry compliance assurance meeting ASME B18.6.3 specifications and environmental regulations including RoHS 3 and REACH
• Right-hand threading convenience for standard installation procedures and compatibility with existing assembly processes

Professional Applications & Engineering Value

These 18-8 stainless steel rounded head Phillips screws deliver critical performance advantages for industrial assembly applications where corrosion resistance and mechanical reliability are paramount. The combination of passivated finish and stainless steel material provides exceptional protection against oxidation and chemical exposure, making them ideal for manufacturing equipment, electronic enclosures, and marine applications. The UNC coarse threads with Class 2A fit ensure rapid installation and secure fastening in various materials, while the fillister head design offers improved clearance in confined spaces. Engineered to ASME B18.6.3 standards, these fully threaded screws maintain dimensional consistency for predictable performance across production runs, reducing assembly time and improving manufacturing efficiency.

Specification Summary & Compliance

This 8-32 x 5/16" UNC screw features precision Class 2A thread fit with coarse thread spacing and right-hand threading orientation. Manufacturing complies with ASME B18.6.3 specifications for dimensional accuracy and performance requirements. The product is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting current environmental regulations for hazardous substance restrictions. The fully threaded design maintains consistent engagement throughout the fastener length, while the rounded fillister head with No. 2 Phillips drive ensures standardized installation compatibility.