S-91735A413 5/16"-18 x 2" 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 chemical and marine environments
• Enhanced durability and wear resistance from Rockwell B85 hardness and passivated surface finish
• High-strength performance with 80,000 psi tensile strength for demanding structural applications
• Reliable thread engagement through fully threaded UNC coarse threads with Class 2A fit for quick assembly
• Wide compatibility with standard No. 4 Phillips drive tools for efficient installation
• Regulatory compliance assurance meeting ASME B18.6.3 specifications and environmental standards (RoHS 3 & REACH)
• Optimized load distribution thanks to the rounded pan head design that minimizes surface damage

Professional Applications & Engineering Value

These 316 stainless steel rounded head screws deliver exceptional performance in corrosive and high-stress environments where material integrity is critical. The combination of fully threaded UNC coarse threads and Class 2A thread fit ensures rapid installation with consistent clamping force, while the passivated finish significantly enhances corrosion resistance beyond standard stainless steel. The pan head design with Phillips drive provides reliable torque transmission without specialized tools, making these screws ideal for industrial machinery, marine equipment, chemical processing systems, and food processing applications where corrosion resistance and structural reliability are paramount.

Specification Summary & Compliance

This 5/16"-18 x 2" rounded head screw features precise Class 2A thread fit with UNC coarse threading and full thread coverage. Manufactured to ASME B18.6.3 specifications with 80,000 psi tensile strength and Rockwell B85 hardness. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across industrial sectors.