S-91772A919 6-40 x 3/8" ASME B18.6.3 Stainless Steel Pan Head Phillips Screws
Stainless Steel Pan Head Phillips Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Superior corrosion resistance with passivated 18-8 stainless steel construction, ideal for harsh industrial environments
- Exceptional mechanical strength with 70,000 psi tensile strength and Rockwell B70 hardness for reliable, long-lasting fastening
- Precise thread engagement through Class 2A fit and UNF fine threading, ensuring secure connections in critical assemblies
- Optimized drive efficiency with Phillips No. 2 drive, reducing cam-out risks and speeding up installation
- Full-threaded design provides maximum grip length and uniform stress distribution along the entire fastener
- Pan head profile offers a low-profile, rounded finish with good bearing surface for stable component mounting
- Regulatory compliance meets ASME B18.6.3 specifications and environmental standards (RoHS 3, REACH) for global supply chain integration
Professional Applications & Engineering Value
Engineered for demanding industrial applications, these 6-40 UNF pan head screws deliver reliable performance where vibration resistance and corrosion protection are critical. The passivated 18-8 stainless steel material prevents oxidation and chemical degradation, extending service life in machinery, electrical enclosures, and outdoor equipment. The UNF fine thread and Class 2A thread fit provide tight tolerances, reducing the risk of loosening under dynamic loads. With a Phillips drive and fully threaded shank, installation is streamlined while maintaining high tensile strength—making these screws ideal for precision assemblies in automotive, aerospace, and heavy-duty manufacturing sectors.
Specification Summary & Compliance
This fastener adheres to ASME B18.6.3 dimensional standards with a Class 2A thread fit for consistent interchangeability. The 6-40 UNF fine thread and 3/8" length ensure precise engagement in tapped holes. Compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) confirms the absence of restricted hazardous substances, supporting environmentally responsible procurement. All manufacturing and material specifications align with industrial quality requirements for stainless steel fasteners.
