S-92210A459 3/4"-10 x 4 1/2" ASME B18.3 Stainless Steel Hex Drive Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel and passivated finish, ideal for harsh industrial environments.
• High tensile strength of 70,000 psi ensures reliable performance under heavy loads and vibration.
• Precise Class 3A thread fit provides secure, tight fastening with minimal risk of loosening.
• Fully threaded UNC coarse design allows for faster installation and strong holding power in various materials.
• 82° countersink angle and flat head enables a flush, clean finish for safety and aesthetics.
• 1/2" hex drive offers easy, high-torque installation with standard tools, reducing assembly time.
• Compliance with ASME B18.3, RoHS 3, and REACH guarantees quality and environmental safety for global applications.

Professional Applications & Engineering Value

This 3/4"-10 UNC flat head screw in 18-8 stainless steel is engineered to address common industrial challenges, such as corrosion in marine or chemical settings and the need for robust fastening in structural assemblies. The passivated finish enhances durability against oxidation, while the coarse thread and Class 3A fit ensure quick, reliable engagement in metals and composites, reducing installation errors. With a Rockwell B55 hardness and 70,000 psi tensile strength, it withstands high-stress applications like machinery, construction, and transportation equipment, providing long-term reliability and minimizing maintenance downtime.

Specification Summary & Compliance

This screw features a Class 3A thread fit for precise tolerances, UNC coarse threading per standard specifications, and dimensions in the inch system, including a 4 1/2" length and 1/2" hex drive. It complies with ASME B18.3 for manufacturing consistency, RoHS 3 (2015/863/EU) for restricted substance control, and REACH (EC 1907/2006) for environmental safety, ensuring adherence to industry regulations.