S-97188A405 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
• Efficient thread forming design creates strong, permanent threads in sheet metal without pre-tapping, reducing installation time
• Secure, cam-out resistant driving provided by the No. 2 square drive, ensuring reliable torque transfer and reduced tool slippage
• Full threading along the 1/2" length maximizes grip and load distribution across the entire fastened joint
• Optimized for thin materials with a maximum drilling thickness of 0.025", perfect for standard sheet metal applications
• Pan head design offers a low-profile, rounded finish for a neat appearance and reduced snagging risk
• Compliance with major environmental regulations including RoHS 3 and REACH, ensuring safety and suitability for regulated industries

Professional Applications & Engineering Value

This No. 10-12 thread forming screw in 316 stainless steel is engineered to solve critical challenges in sheet metal assembly. Its thread forming (tapping) method displaces material to create a zero-clearance fit, eliminating the need for separate tapping operations and reducing assembly steps. The A/AB tapping screw type with a pointed tip ensures easy starting and smooth engagement in pre-drilled holes (recommended drill bit size No. 21). The combination of the fully threaded round shank and the pan head with a No. 2 square drive provides exceptional vibration resistance and clamp load retention, preventing loosening in dynamic applications. This makes it an indispensable industrial fastener for HVAC systems, electronic enclosures, and automotive panels where corrosion resistance and joint integrity are paramount.

Specification Summary & Compliance

This screw conforms to standard inch measurements with a thread diameter of 0.19" and 12 threads per inch. The pan head has a diameter of 0.373" and a height of 0.11". It is manufactured as a right-hand threaded, fully threaded thread forming screw of type A/AB. The product is fully RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting stringent international standards for hazardous substance restrictions.