S-91735A424 3/8"-16 x 3/4" ASME B18.6.3 Stainless Steel Pan Head Phillips Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance in harsh environments thanks to 316 Stainless Steel construction with passivated finish
• Exceptional mechanical strength with 80,000 psi tensile strength and Rockwell B85 hardness for reliable load-bearing performance
• Optimized drive engagement with Phillips No. 4 drive for efficient installation and reduced cam-out risk
• Precision thread fit with Class 2A UNC coarse threads ensuring secure fastening and vibration resistance
• Full threading coverage along the 3/4" length provides maximum grip and uniform stress distribution
• Regulatory compliance assurance meeting ASME B18.6.3 specifications and environmental standards (RoHS 3 & REACH)
• Standard pan head design with 0.74" diameter offers excellent bearing surface and visual appeal

Professional Applications & Engineering Value

These 316 Stainless Steel rounded head screws deliver critical performance advantages in demanding industrial applications where corrosion resistance and mechanical reliability are paramount. The combination of passivated finish and UNC coarse threading ensures long-term integrity in chemical processing, marine environments, and food equipment where moisture and corrosive agents are present. The Phillips drive system provides familiar, efficient installation while the Class 2A thread fit maintains precise tolerances for vibration-prone assemblies. With full threading along the entire 3/4" length, these pan head screws distribute clamping forces evenly, preventing joint failure in high-stress applications while meeting rigorous ASME B18.6.3 standards for dimensional consistency and performance.

Specification Summary & Compliance

This fastener maintains Class 2A thread fit tolerance with UNC 3/8"-16 coarse threading and complies with ASME B18.6.3 manufacturing specifications. The product meets RoHS 3 (2015/863/EU) compliance for hazardous substance restrictions and REACH (EC 1907/2006) regulations for chemical safety. Dimensional accuracy includes 0.74" head diameter, 0.261" head height, and consistent thread geometry throughout the 3/4" fully threaded length.