S-93945A028 Length 2 1/2" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments and extending service life.
• Efficient thread forming design creates strong, permanent threads in sheet metal without pre-tapping, reducing installation time and labor costs.
• Secure square drive system provides high torque transmission and minimizes cam-out, ensuring reliable fastening in high-vibration applications.
• Full threading along the 2-1/2" length offers maximum grip and holding power across the entire material thickness.
• Standard 82° flat head profile allows for flush mounting in countersunk holes, providing a smooth finish and preventing snagging.
• Compliance with RoHS 3 and REACH regulations ensures environmental safety and meets global industry standards for hazardous substances.
• Optimized for No. 29 drill bit (0.136" diameter) ensures precise hole sizing and secure fit in sheet metal up to 0.025" thickness.

Professional Applications & Engineering Value

These No. 8-15 thread forming tapping screws are engineered to address common challenges in sheet metal fabrication, such as material fatigue and loosening under stress. Made from durable 18-8 stainless steel, they resist rust and corrosion in demanding environments like outdoor enclosures or HVAC systems. The flat head with an 82° countersink ensures a seamless finish, while the square drive enhances torque control during installation, reducing tool slippage. Fully threaded and right-hand threaded, these screws provide consistent clamping force, preventing joint failure in sheet metal applications and improving overall assembly reliability.

Specification Summary & Compliance

This product adheres to standard inch measurements with a thread diameter of 0.164" and approximately 15 threads per inch, ensuring precise fit. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its safety for industrial use. The screw features a fully threaded design and is classified under A/AB tapping screw types for reliable performance in forming threads without pre-drilled holes.