S-95639A401 Length 1/2" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction, ideal for harsh environments and extended service life in sheet metal applications.
• Efficient, secure installation provided by the Phillips No. 2 drive, ensuring positive engagement and reducing the risk of cam-out.
• Flush, professional finish achieved with the undercut oval head design, which sits neatly countersunk for a smooth surface.
• Excellent thread-forming capability with Type A/AB threads, creating strong, reliable threads in pre-drilled holes without the need for a separate tapping operation.
• Optimized for thin materials, designed for a maximum drilling thickness of 0.025", making it a reliable choice for standard sheet metal work.
• Full threading along the entire 1/2" length ensures maximum grip and holding power in the assembled joint.
• Compliance with major environmental regulations including RoHS 3 and REACH, ensuring safety and suitability for various global markets.

Professional Applications & Engineering Value

This 316 Stainless Steel Phillips Oval Head Tapping Screw is engineered to address common challenges in sheet metal fabrication, such as corrosion from exposure to moisture or chemicals. The thread forming design of the Type A/AB screw displaces material to create strong, wear-resistant internal threads, eliminating the need for pre-tapped holes and speeding up assembly. The undercut oval head provides a clean, countersunk finish that minimizes protrusion, reducing snagging risks and improving aesthetic appeal in visible applications. Its high corrosion resistance ensures long-term reliability in demanding environments, from outdoor enclosures to marine-adjacent equipment, making it a cost-effective solution for durable fastening.

Specification Summary & Compliance

This No. 10 x 1/2" tapping screw features a thread diameter of 0.19" with approximately 12 threads per inch and is fully threaded. It conforms to standard inch measurements and is designed for use with a No. 21 drill bit (0.159" diameter). The screw is manufactured to typical industry standards for thread forming Type A/AB screws. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and suitable for use in regulated markets.