S-94356A111 4-40 x 3/16" Stainless Steel Torx Flat Head Screws
Stainless Steel Torx Flat Head 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
- Exceptional tensile strength of 130,000 psi ensures reliable performance under high-stress conditions, reducing the risk of fastener failure.
- Superior corrosion resistance from A286 Stainless Steel material extends service life in harsh industrial environments.
- Precise Class 3A thread fit provides tighter tolerances for secure, vibration-resistant assemblies in critical applications.
- Enhanced torque transmission with T8 Torx drive minimizes cam-out and tool slippage, improving installation efficiency.
- Optimized 82° countersink angle allows for a flush, low-profile finish, ideal for aerodynamic or smooth-surface designs.
- Full threading along the 3/16" length ensures maximum grip and uniform load distribution across the entire fastener.
- Compliance with RoHS 3 and REACH regulations guarantees environmental safety and suitability for global industrial markets.
Professional Applications & Engineering Value
This 4-40 UNC A286 Stainless Steel flat head screw is engineered to address common industrial challenges such as vibration loosening, corrosion-induced degradation, and installation inefficiency. The T8 Torx drive offers superior torque control, reducing wear on tools and fasteners during assembly. With a coarse thread spacing and Class 3A thread fit, it ensures rapid installation and reliable holding power in materials where fine threads may strip. The fully threaded design and high tensile strength make it ideal for demanding applications in aerospace, automotive, and heavy machinery, where durability and precision are critical. Its RoHS 3 and REACH compliance further supports use in regulated sectors, providing peace of mind for engineers and procurement specialists.
Specification Summary & Compliance
This screw adheres to UNC thread standards with a Class 3A thread fit for precise dimensional accuracy. It features a right-hand thread direction, coarse thread spacing, and a standard 82° countersink angle. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental and safety standards are met for industrial use.
