S-91773A168 1-64 x 3/8" ASME B18.6.3 Stainless Steel Round Head Phillips Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction and passivated finish, ideal for harsh industrial environments.
• Exceptional mechanical strength offering 100,000 psi tensile strength and Rockwell B100 hardness for reliable, long-lasting fastening.
• Optimized for quick assembly through coarse UNC threads and Class 2A fit, reducing installation time and effort.
• Secure and stable drive engagement with the Phillips No. 0 drive style, minimizing cam-out and ensuring consistent torque application.
• Full threading along the 3/8" length provides maximum grip and holding power in various material thicknesses.
• Compliance with major industry standards including ASME B18.6.3, ensuring dimensional accuracy and interchangeability.
• Environmentally responsible manufacturing with RoHS 3 and REACH compliance, meeting global regulatory requirements.

Professional Applications & Engineering Value

This 1-64 UNC coarse thread rounded head screw is engineered to address common industrial challenges such as vibration loosening and material fatigue. The 18-8 stainless steel material, combined with a passivated finish, provides excellent resistance to oxidation and chemical exposure, making it suitable for electronics, machinery, and outdoor equipment. The coarse thread design ensures rapid installation and strong holding power in softer materials or where frequent disassembly is not required. With a Phillips drive, it offers ease of use with standard tools, reducing the risk of strip-out during high-torque applications. Fully threaded and built to ASME B18.6.3 specifications, this screw delivers consistent performance in automated assembly lines and precision engineering projects, enhancing productivity and reducing maintenance costs.

Specification Summary & Compliance

This screw adheres to Class 2A thread fit tolerances for consistent engagement and meets UNC coarse thread standards (1-64 size). Manufacturing conforms to ASME B18.6.3 for dimensional accuracy. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring no restricted substances are used. The right-hand threading and fully threaded design support reliable fastening in industrial applications.