S-99663A210 Length 3/8" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction, ideal for harsh industrial environments and outdoor applications.
• Reliable thread forming design creates strong, permanent threads in sheet metal up to 0.025" thickness, eliminating the need for separate tapping operations.
• Versatile external hex/slotted drive allows for easy installation with standard tools, providing flexibility in assembly processes.
• Flanged head design distributes clamping force evenly, reducing the risk of material damage and improving joint integrity.
• Fully threaded shank ensures maximum grip and holding power across the entire length for secure fastening in sheet metal.
• Compliance with RoHS 3 and REACH regulations guarantees environmental safety and meets global industry standards for hazardous substances.
• Precision No. 8 size with 15 threads per inch delivers consistent performance and compatibility with standard drill bit sizes like No. 29.

Professional Applications & Engineering Value

This No. 8 x 3/8" 316 stainless steel tapping screw is engineered to address common challenges in sheet metal fastening, such as material fatigue and corrosion. The thread forming technology cold-forms threads into the base material, reducing stress concentrations and enhancing joint strength without chip removal. Made from 316 stainless steel, it offers excellent resistance to chemicals and moisture, making it suitable for demanding sectors like automotive, HVAC, and marine industries. The external hex/slotted drive and flanged head simplify installation while preventing loosening under vibration, ensuring long-term reliability in industrial applications.

Specification Summary & Compliance

This screw features a thread diameter of 0.164" with approximately 15 threads per inch, adhering to standard inch measurements for precision. It is designed for use with a No. 29 drill bit (0.136" diameter) and supports a maximum drilling thickness of 0.025". The product complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from restricted hazardous substances and meets environmental and safety standards for industrial fasteners.