S-95345A476 6-32 x 1/2" ASME B18.13 Stainless Steel Pan Head Phillips Screws with External-Tooth Lock Washer

Key Features & Benefits at a Glance

• Superior vibration resistance with integrated external-tooth lock washer that maintains clamping force in high-motion environments
• Excellent corrosion protection through 18-8 stainless steel construction and passivated surface treatment for extended service life
• High-strength performance with 70,000 psi tensile strength ensuring reliable fastening in demanding applications
• Optimized installation efficiency featuring Phillips drive and UNC coarse threading for quick assembly and reduced cross-threading risk
• Precision thread fit with Class 2A tolerance providing consistent engagement and reliable torque performance
• Complete thread coverage with fully threaded design maximizing grip length and load distribution
• Regulatory compliance assurance meeting ASME B18.13 specifications and environmental standards including RoHS 3 and REACH

Professional Applications & Engineering Value

This Phillips pan head screw with external-tooth lock washer delivers exceptional engineering value in industrial settings where vibration-induced loosening compromises assembly integrity. The 18-8 stainless steel core provides inherent corrosion resistance, while the passivated finish enhances surface durability against chemical exposure and environmental factors. The external-tooth lock washer bites into both the bearing surface and screw head, creating permanent resistance to rotational forces in machinery, electrical enclosures, and transportation equipment. The UNC coarse thread configuration ensures rapid installation in production environments, while the Class 2A thread fit maintains precise tolerances for consistent torque values. This combination addresses critical failure points in industrial fastening applications where reliability under dynamic loads is paramount.

Specification Summary & Compliance

This fastener features 6-32 UNC coarse threading with Class 2A tolerance for precision fit, manufactured to ASME B18.13 specifications. The assembly combines an 18-8 stainless steel screw with a 410 stainless steel external-tooth lock washer, both featuring passivated finish for enhanced corrosion protection. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring suitability for global industrial applications with strict material restrictions.