S-95345A091 10-32 x 3/8" ASME B18.13 Stainless Steel Pan Head Phillips Screws with Internal-Tooth Lock Washer

Key Features & Benefits at a Glance

• Superior vibration resistance with integrated 410 stainless steel internal-tooth lock washer, preventing loosening in dynamic applications
• Excellent corrosion resistance through 18-8 stainless steel construction with passivated finish, ideal for harsh industrial environments
• High tensile strength of 70,000 psi ensures reliable performance in demanding mechanical assemblies
• Precision Class 2A thread fit provides consistent engagement and reduces cross-threading risks during installation
• Phillips No. 2 drive compatibility offers familiar, efficient installation with standard industrial tools
• Fully threaded design maximizes grip length and load distribution across the entire fastener
• Regulatory compliance assurance meets ASME B18.13 specifications and environmental standards (RoHS 3, REACH)

Professional Applications & Engineering Value

This 10-32 UNF pan head machine screw delivers exceptional engineering value in vibration-prone applications where fastener security is critical. The combination of 18-8 stainless steel with passivated finish provides reliable corrosion protection for industrial equipment, electronic enclosures, and machinery subjected to moisture or chemical exposure. The integrated internal-tooth lock washer manufactured from 410 stainless steel creates permanent locking action that resists loosening under continuous vibration, eliminating the need for separate locking components and reducing assembly time. The Phillips drive and rounded pan head profile ensure straightforward installation while maintaining a low-profile appearance. With fine UNF threading and Class 2A fit, this fastener delivers precise engagement in tapped holes, making it ideal for precision equipment, automotive components, and industrial machinery where vibration resistance and corrosion protection are paramount.

Specification Summary & Compliance

This machine screw features precision 10-32 UNF threads with Class 2A fit tolerance, ensuring consistent thread engagement. The fastener is fully threaded with a length of 3/8" and head diameter of 0.373". Manufacturing complies with ASME B18.13 specifications for dimensional accuracy and performance. Environmental compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming the absence of restricted substances. The combination of 18-8 stainless steel screw body and 410 stainless steel lock washer, both with passivated finish, provides corrosion resistance while maintaining the 70,000 psi tensile strength rating.