S-90400A218 10-32 x 1/4" ASME B18.13 Steel Pan Head Phillips Screws with Spring Lock Washer

Key Features & Benefits at a Glance

• Enhanced vibration resistance through the integrated spring lock washer that maintains clamping force in high-motion environments
• Superior corrosion protection with zinc-plated steel construction for extended service life in industrial conditions
• Reliable fastening performance with 60,000 psi tensile strength and Rockwell B70 hardness for demanding applications
• Precision thread engagement with Class 2A UNF fine threads ensuring secure, consistent connections
• Optimized drive efficiency through Phillips No. 2 drive design providing excellent torque transfer and reduced cam-out
• Full-threaded design delivering maximum grip length and load distribution across the entire fastener
• Regulatory compliance assurance meeting ASME B18.13 standards while being RoHS 3 and REACH compliant

Professional Applications & Engineering Value

These zinc-plated steel screws with integrated spring lock washers provide critical vibration-resistant solutions for industrial assembly applications where loosening under dynamic loads is a primary concern. The combination of UNF fine threads and Class 2A thread fit ensures precise engagement in machinery, electronic enclosures, and automotive components where vibration is prevalent. The Phillips pan head design offers a low-profile installation while the fully threaded construction maximizes surface contact for superior load distribution. This fastener addresses common engineering challenges in manufacturing environments by maintaining clamp load integrity despite continuous mechanical stress, thermal cycling, and operational vibrations that typically compromise standard fasteners.

Specification Summary & Compliance

This 10-32 x 1/4" screw features Class 2A thread fit with UNF fine thread specification and is manufactured to ASME B18.13 standards. The product maintains full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental responsibility while delivering consistent dimensional accuracy and mechanical performance across industrial applications.