S-90600A629 1/4"-20 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 with 18-8 Stainless Steel construction and passivated finish, ideal for harsh environments
- Enhanced torque transmission and strip resistance from the T27 Torx drive design
- Reliable, precise fastening with Class 3A thread fit and UNC coarse spacing for quick assembly
- High tensile strength of 60,000 psi ensures dependable performance under load
- Full threading along the 2" length provides maximum grip and adjustment flexibility
- Low-profile rounded button head offers a finished appearance and reduced snagging risk
- Compliance with major industrial standards including ASME B18.3, ensuring quality and interchangeability
Professional Applications & Engineering Value
This 1/4"-20 x 2" T27 Torx Rounded Head Screw is engineered to address common industrial fastening challenges, such as corrosion-induced failure and assembly inefficiency. The 18-8 Stainless Steel material, combined with a passivated finish, provides exceptional resistance to rust and chemical exposure, making it suitable for outdoor, marine, and chemical processing equipment. The T27 Torx drive minimizes cam-out, allowing for higher torque application and reducing tool wear, while the fully threaded UNC coarse spacing ensures rapid installation and secure holding in a variety of materials. Its Class 3A thread fit guarantees precise engagement, reducing the risk of cross-threading in high-volume production environments. Ideal for machinery, automotive, and electronic enclosures, this screw delivers durability and reliability where consistent performance is critical.
Specification Summary & Compliance
This screw features a 1/4"-20 UNC thread with coarse spacing and Class 3A thread fit for high precision. It is manufactured in accordance with ASME B18.3 specifications (referencing ASTM F879) to ensure dimensional accuracy and performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming it is free of hazardous substances and safe for various industrial applications.
