S-96870A201 1/4"-20 x 1/2" ASME B18.2.1, ASTM F593 Grade 630 High-Strength 17-4 PH Stainless Steel Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance from 17-4 PH Stainless Steel, ideal for harsh industrial environments and long-term reliability.
• Superior mechanical strength with a tensile strength of 130,000 psi and yield strength of 105,000 psi for demanding, high-stress applications.
• Reliable and precise assembly ensured by the Class 2A thread fit, providing consistent engagement and reducing the risk of cross-threading.
• Efficient installation and removal with the external hex drive and standard UNC coarse thread, allowing for high torque application with common tools.
• Full-length threading offers maximum grip and holding power along the entire 1/2" length for secure fastening in various material thicknesses.
• Compliance with major industry standards including ASME B18.2.1 and ASTM F593 Grade 630, guaranteeing quality and interchangeability.
• Environmentally responsible manufacturing with RoHS 3 and REACH compliance, meeting strict regulatory requirements for hazardous substances.

Professional Applications & Engineering Value

This 1/4"-20 UNC Hex Head Screw is engineered from 17-4 PH Stainless Steel, a precipitation-hardening alloy that provides an optimal balance of high strength and excellent corrosion resistance, solving critical challenges in industrial applications such as heavy machinery, chemical processing equipment, and marine hardware. The coarse thread design and fully threaded body ensure rapid installation and superior vibration resistance, reducing maintenance downtime. The external hex drive allows for high torque application, making it ideal for assemblies requiring robust, reliable fastening. Its compliance with ASME B18.2.1 ensures dimensional consistency and performance reliability, making it a trusted component for engineers and procurement specialists.

Specification Summary & Compliance

This screw features a 1/4"-20 UNC thread with a Class 2A fit for standard tolerance and easy assembly. It is manufactured to meet ASME B18.2.1 and ASTM F593 Grade 630 specifications, ensuring dimensional accuracy and mechanical properties. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its adherence to environmental and safety standards for industrial use.