S-90400A219 10-32 x 3/8" ASME B18.13 Steel Pan Head Phillips Screws with Spring Lock Washer

Key Features & Benefits at a Glance

• Superior vibration resistance through integrated spring lock washers that maintain clamping force under dynamic loads
• Enhanced corrosion protection with zinc-plated steel construction for extended service life in industrial environments
• Reliable fastening performance with 60,000 psi tensile strength and Rockwell B70 hardness for demanding applications
• Precise thread engagement featuring UNF fine threads with Class 2A fit for secure, accurate installations
• Optimized drive efficiency with Phillips No. 2 drive style providing excellent torque transfer and reduced cam-out
• Full-thread design ensures maximum grip length and uniform stress distribution along the entire fastener
• Comprehensive compliance meeting ASME B18.13 specifications and environmental regulations including RoHS 3 and REACH

Professional Applications & Engineering Value

These zinc-plated steel screws with integrated spring lock washers deliver exceptional engineering value in vibration-prone applications. The UNF fine thread configuration provides superior resistance to loosening while maintaining precise thread engagement in machinery, equipment assembly, and automotive components. The Phillips pan head design offers optimal drive performance with a low-profile rounded head that minimizes protrusion. The zinc-plated steel construction ensures reliable corrosion resistance in industrial environments, while the spring lock washer actively compensates for vibration-induced relaxation. These fully threaded screws distribute clamping force evenly, making them ideal for applications requiring consistent pressure across the entire fastened joint. With 60,000 psi tensile strength and Rockwell B70 hardness, they withstand significant mechanical stresses while maintaining structural integrity.

Specification Summary & Compliance

This 10-32 x 3/8" screw features precise Class 2A thread fit with UNF fine threading and right-hand thread direction. Manufacturing complies with ASME B18.13 specifications for dimensional accuracy and performance standards. The product meets RoHS 3 (2015/863/EU) compliance and REACH (EC 1907/2006) regulations, ensuring environmental responsibility and material safety. The spring lock washer provides additional vibration resistance while maintaining the fastener's structural integrity under dynamic loading conditions.