S-95345A530 8-32 x 3/8" 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 to maintain secure fastening in high-motion environments
• Excellent corrosion resistance from 18-8 stainless steel construction with passivated finish for extended service life in harsh conditions
• High tensile strength of 70,000 psi ensures reliable performance under significant mechanical stress
• Optimized drive engagement with Phillips No. 2 drive for efficient installation and reduced cam-out
• Full thread coverage along the 3/8" length provides maximum grip and load distribution
• Precision UNC coarse threading with Class 2A fit enables quick assembly and reliable thread engagement
• Dual-material construction featuring 410 stainless steel lock washer for consistent locking performance

Professional Applications & Engineering Value

This 8-32 x 3/8" rounded head Phillips screw with integrated external-tooth lock washer addresses critical vibration-induced loosening in industrial applications. The 18-8 stainless steel material with passivated finish provides exceptional corrosion resistance for machinery, electrical enclosures, and outdoor equipment exposed to moisture and chemicals. The pan head design offers a low-profile installation while the coarse UNC threading ensures rapid assembly in production environments. The external-tooth lock washer bites into both the bearing surface and screw head, creating a permanent locking action that eliminates the need for additional threadlocking compounds. This combination makes it ideal for vibration-resistant fastening in automotive assemblies, industrial controls, and machinery where maintenance access is limited.

Specification Summary & Compliance

This fastener features precision 8-32 UNC coarse threads with Class 2A fit tolerance for consistent engagement. Manufactured to ASME B18.13 specifications ensuring dimensional accuracy and performance reliability. The screw is fully threaded along its 3/8" length and paired with an external-tooth lock washer measuring 0.32" OD with 0.023" thickness. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations for environmental safety and restricted substance control.