S-97763A350 1/4"-20 x 2 1/2" ASME B18.3 Stainless Steel Button Head Hex-Drive Screws
Stainless Steel Button Head Hex-Drive 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 Black-Oxide 18-8 Stainless Steel construction, ideal for harsh environments and reducing replacement frequency.
- High tensile strength of 70,000 psi ensures reliable performance under heavy loads and vibration, minimizing failure risks.
- Class 3A thread fit provides precise, secure fastening with reduced risk of cross-threading in critical assemblies.
- Hex drive (5/32") design allows for high-torque installation and easy removal with standard tools, speeding up maintenance.
- Fully threaded shank offers consistent grip along the entire length, enhancing load distribution in thick materials.
- Compliance with ASME B18.3, RoHS 3, and REACH guarantees adherence to industry safety and environmental standards for global supply chains.
- Rounded head profile reduces surface damage and improves safety in applications where protrusion is a concern.
Professional Applications & Engineering Value
Engineered for demanding industrial settings, these 1/4"-20 UNC coarse thread screws with Black-Oxide 18-8 Stainless Steel provide exceptional durability against moisture, chemicals, and temperature fluctuations. The rounded head hex design and Class 3A thread fit ensure quick, secure installations in machinery, automotive, and construction assemblies, reducing downtime from loosening or corrosion. With a Rockwell B55 hardness and 70,000 psi tensile strength, they handle high-stress applications like heavy equipment frames and structural supports, offering long-term reliability and cost savings by minimizing maintenance needs.
Specification Summary & Compliance
This screw features a 1/4"-20 UNC coarse thread with Class 3A precision fit for tight tolerances, and is fully threaded for uniform engagement. It meets ASME B18.3 manufacturing standards, ensuring dimensional accuracy and performance consistency. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, it supports environmentally responsible sourcing and use in global markets.
