S-91772A946 5/16"-18 x 7/8" ASME B18.6.3 Stainless Steel Pan Head Phillips Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with passivated 18-8 stainless steel construction, ideal for harsh industrial environments
• Exceptional mechanical strength delivering 70,000 psi tensile strength and Rockwell B70 hardness for reliable load-bearing performance
• Precise Class 2A thread fit ensuring smooth assembly and secure fastening in coarse-threaded applications
• Optimized Phillips No. 4 drive providing efficient torque transfer and reduced cam-out during installation
• Fully threaded 7/8" length offering maximum grip and adjustability across the entire fastener
• Industry-standard compliance meeting ASME B18.6.3 specifications for consistent quality and interchangeability
• Environmental regulation adherence with RoHS 3 and REACH compliance for safe, sustainable usage

Professional Applications & Engineering Value

This 5/16"-18 UNC rounded pan head Phillips screw delivers critical engineering advantages in demanding applications. The passivated 18-8 stainless steel material provides excellent corrosion resistance, preventing failure in humid or chemically aggressive environments. Its coarse UNC threading and Class 2A fit enable rapid assembly with reduced cross-threading risks, while the fully threaded design ensures uniform stress distribution. The rounded pan head offers a low-profile finish with enhanced Phillips drive engagement, minimizing stripping during high-torque installations. Ideal for industrial machinery, electrical enclosures, and structural assemblies where 70000 psi tensile strength and regulatory compliance are paramount.

Specification Summary & Compliance

Manufactured to ASME B18.6.3 standards with Class 2A thread fit and UNC coarse thread spacing. Features include 5/16"-18 thread size, 7/8" length, and full threading. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring material safety and sustainability.