S-91772A673 3/8"-16 x 1/2" 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 tensile strength of 70,000 psi ensures reliable performance under heavy loads and vibration
• Consistent thread engagement with Class 2A fit and UNC coarse threading for faster assembly and reduced cross-threading risk
• Optimized drive efficiency featuring Phillips No. 4 drive for secure torque application and reduced cam-out
• Full threading along the 1/2" length provides maximum grip and load distribution across the entire fastener
• Durable Rockwell B70 hardness maintains thread integrity and resists wear during repeated installations
• Comprehensive compliance with ASME B18.6.3, RoHS 3, and REACH standards for guaranteed quality and environmental safety

Professional Applications & Engineering Value

This 3/8"-16 UNC pan head screw delivers critical engineering solutions where corrosion resistance and structural integrity are paramount. The passivated 18-8 stainless steel material effectively combats oxidation and chemical exposure in manufacturing, marine, and outdoor equipment applications. Its coarse UNC thread and Class 2A fit enable rapid installation in tapped holes or nuts while maintaining alignment stability. The pan head design with Phillips No. 4 drive offers a low-profile, high-clamping solution for machinery assemblies, electrical enclosures, and structural frameworks where vibration resistance and long-term durability are essential. Fully threaded for uniform stress distribution, this fastener meets rigorous industrial demands while complying with international safety and material regulations.

Specification Summary & Compliance

Manufactured to precise inch system dimensions with UNC coarse threads and Class 2A thread fit tolerance. Complies with ASME B18.6.3 mechanical standards for dimensional consistency and performance. Meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental compliance requirements, ensuring hazardous substance restrictions are adhered to. Material certifications confirm 18-8 stainless steel composition with passivated surface treatment for enhanced corrosion protection.