S-90400A148 6-32 x 1/2" ASME B18.13 Steel Pan Head Phillips Screws with Spring Lock Washer
Steel Pan Head Phillips Screws with Spring Lock Washer
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Washer & Nut
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Superior vibration resistance with integrated spring lock washer that maintains clamping force under dynamic loads
- Enhanced corrosion protection through zinc-plated steel construction for extended service life in harsh environments
- High-strength performance with 60,000 psi tensile strength and Rockwell B70 hardness for demanding applications
- Quick installation with No. 2 Phillips drive and coarse UNC threads that reduce assembly time
- Reliable thread engagement through Class 2A thread fit ensuring consistent fastening performance
- Full-thread design providing maximum grip length and holding power across the entire fastener
- Regulatory compliance meeting ASME B18.13 standards for quality assurance and industry acceptance
Professional Applications & Engineering Value
These zinc-plated steel screws with integrated spring lock washers solve critical vibration-induced loosening problems in industrial equipment, machinery, and electrical enclosures. The combination of UNC coarse threads and Class 2A thread fit ensures rapid installation while maintaining precision alignment in assembly operations. The Phillips pan head design with No. 2 drive size provides excellent torque transmission without cam-out issues, making them ideal for production environments where speed and reliability are paramount. The fully threaded construction delivers maximum thread engagement in various material thicknesses, while the zinc plating offers essential corrosion resistance for long-term performance in manufacturing facilities, automotive applications, and outdoor equipment where environmental factors challenge fastener integrity.
Specification Summary & Compliance
This 6-32 x 1/2" screw features Class 2A thread fit tolerance with UNC coarse threads and right-hand threading direction. Manufacturing complies with ASME B18.13 specifications for dimensional accuracy and performance standards. The product is fully RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting current environmental regulations for industrial use. The spring lock washer component maintains consistent performance within specified OD of 0.32" and thickness of 0.03".
