S-93195A434 Length 5/8" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh environments and long-term reliability.
• Efficient thread forming design creates strong, permanent threads in sheet metal without pre-tapping, reducing installation time and tooling.
• Precise 82° flat head with standard profile ensures a flush, clean finish that sits perfectly countersunk in prepared holes.
• Optimized for No. 29 drill bit (0.136" diameter) for exact fit and secure fastening in sheet metal applications, minimizing material stress.
• Phillips No. 2 drive provides widespread tool compatibility and controlled torque application during installation.
• Fully threaded shank offers maximum grip length and holding power across the entire fastener engagement.
• Compliant with RoHS 3 and REACH regulations for safe, environmentally responsible use in global industrial supply chains.

Professional Applications & Engineering Value

This No. 8-18 x 5/8" tapping screw is engineered specifically for sheet metal applications where durability and corrosion resistance are critical. The 18-8 stainless steel material prevents rust and degradation, making it suitable for outdoor equipment, HVAC systems, and electronic enclosures. Its thread forming (Type B) design displaces material to create strong, load-bearing threads without chips, eliminating the need for separate tapping operations and reducing assembly costs. The Phillips flat head with an 82° countersink angle provides a smooth, aerodynamic surface finish, essential for applications where protrusions are unacceptable. These features combine to solve common industrial challenges like galvanic corrosion, vibration loosening, and installation efficiency in high-volume manufacturing.

Specification Summary & Compliance

This screw features a No. 8-18 thread with a 0.164" diameter and 18 threads per inch, manufactured to standard inch system tolerances for consistent performance. The flat head has a diameter of 0.312" and height of 0.1", designed for use with a No. 29 drill bit (0.136" diameter). It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets stringent environmental and safety standards for industrial use.