S-97763A348 1/4"-20 x 1 1/2" ASME B18.3 Stainless Steel Button Head Hex-Drive Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with Black-Oxide coated 18-8 Stainless Steel, ideal for harsh industrial environments
• Exceptional holding power from fully threaded UNC coarse spacing and Class 3A fit for secure, vibration-resistant fastening
• High tensile strength of 70,000 psi ensures reliable performance under heavy loads and stress
• Durable Rockwell B55 hardness maintains structural integrity and resists wear over time
• Easy installation and removal with 5/32" hex drive, providing firm tool grip and reducing slippage
• Compliant with ASME B18.3 standards for consistent quality and dimensional accuracy in industrial applications
• Environmentally safe with RoHS 3 and REACH compliance, meeting global regulatory requirements

Professional Applications & Engineering Value

These Black-Oxide 18-8 Stainless Steel Rounded Head Screws are engineered to address common industrial challenges, such as corrosion in humid or chemical-exposed settings. The Black-Oxide coating enhances surface protection, reducing oxidation and extending service life in demanding applications like machinery assembly, automotive components, and outdoor structures. With a fully threaded UNC coarse spacing and Class 3A fit, they deliver superior grip and minimize loosening from vibrations, ensuring long-term reliability. The hex drive design allows for efficient torque application, speeding up installation in tight spaces while maintaining high tensile strength for heavy-duty fastening needs.

Specification Summary & Compliance

This screw features precise dimensions, including a 1/4"-20 UNC thread with Class 3A fit for tight tolerance and optimal performance. It adheres to ASME B18.3 manufacturing standards, ensuring consistent quality and compatibility. Additionally, it is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, supporting safe and sustainable industrial use.