S-90600A822 5/16"-18 x 2" ASME B18.3, ASTM F879 Stainless Steel Button Head Torx Screws
Stainless Steel Button Head Torx 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 thanks to 18-8 stainless steel construction and passivated finish, ideal for harsh industrial environments
- Maximum torque transmission and reduced cam-out with the T40 Torx drive, ensuring secure fastening and tool longevity
- Exceptional thread engagement and holding power from the fully threaded 5/16"-18 UNC Class 3A design, providing reliable performance under load
- High tensile strength of 60,000 psi for demanding applications where mechanical integrity is critical
- Precise fit and consistent performance guaranteed by compliance with the rigorous ASME B18.3 standard
- Enhanced safety and environmental compliance with RoHS 3 and REACH regulations, ensuring suitability for global markets
- Easy installation in coarse-thread applications with right-hand UNC threading, speeding up assembly processes
Professional Applications & Engineering Value
Engineered for heavy-duty industrial use, these 18-8 stainless steel rounded head screws solve critical challenges in machinery assembly, automotive components, and outdoor equipment. The passivated finish significantly enhances corrosion resistance, preventing failure in moist or chemically aggressive settings. The T40 Torx drive minimizes tool slippage, allowing for higher torque application without damaging the fastener head—essential for maintenance and production lines requiring repeatable, secure fastening. With a fully threaded 5/16"-18 UNC Class 3A design, these screws ensure maximum grip and vibration resistance, making them ideal for structural applications where 60,000 psi tensile strength and precision threading are non-negotiable for long-term reliability.
Specification Summary & Compliance
This screw meets precise dimensional and performance criteria, including UNC coarse threads with Class 3A fit for tight tolerances and consistent engagement. Manufacturing adheres to ASME B18.3 specifications, ensuring uniformity and interchangeability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006), confirming the absence of restricted substances and supporting use in regulated industries.
