S-90400A192 8-32 x 3/8" 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
- Enhanced Vibration Resistance – Integrated spring lock washer maintains consistent clamping force under dynamic loads, preventing loosening in high-stress applications.
- Superior Corrosion Protection – Zinc-plated steel construction provides reliable defense against rust and environmental degradation, extending service life.
- Optimized Drive Engagement – No. 2 Phillips drive ensures efficient torque transfer and reduces cam-out risk during installation.
- High Load-Bearing Capacity – 60,000 psi tensile strength and Rockwell B70 hardness deliver exceptional mechanical integrity for heavy-duty assemblies.
- Reliable Thread Performance – Fully threaded UNC coarse spacing with Class 2A fit enables quick assembly and secure fastening in various materials.
- Streamlined Assembly Process – Pre-assembled washer eliminates separate component handling, reducing installation time and labor costs.
- Broad Industrial Compliance – Meets ASME B18.13 specifications and environmental standards (RoHS 3/REACH) for global supply chain compatibility.
Professional Applications & Engineering Value
Engineered for demanding industrial applications, these zinc-plated steel screws address critical vibration-induced failure points through their integrated spring lock washer design. The pan head profile with Phillips drive provides flush mounting capability while maintaining accessibility in confined spaces. With UNC coarse threading and Class 2A thread fit, these fully threaded screws deliver superior pull-out resistance in metal assemblies, electrical enclosures, and machinery components. The combination of 60,000 psi tensile strength and Rockwell B70 hardness ensures reliable performance in high-stress environments where fastener integrity is paramount to operational safety and equipment longevity.
Specification Summary & Compliance
This 8-32 x 3/8" screw maintains precise Class 2A thread fit tolerances with UNC coarse thread spacing and right-hand threading. Manufacturing conforms to ASME B18.13 specifications for dimensional consistency and performance reliability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across global industrial markets.
