S-90197A641 Length 1/2" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction, extending service life in demanding industrial environments
• Efficient thread-forming design creates permanent, high-strength threads in sheet metal without pre-tapping requirements
• Integrated flange eliminates need for separate washers, providing wider bearing surface and preventing pull-through
• Dual external hex/slotted drive options offer flexibility for various installation tools and torque requirements
• Needle point tip ensures precise starting alignment and reduces installation effort in sheet metal applications
• Fully threaded shank maximizes grip length for superior holding power across the entire fastener length
• Compliant with RoHS 3 and REACH regulations for environmentally responsible manufacturing and global market acceptance

Professional Applications & Engineering Value

These No. 10-12 zinc-plated steel flanged tapping screws deliver exceptional performance in sheet metal fabrication and assembly applications. The thread-forming needle point design eliminates the need for separate tapping operations, significantly reducing installation time and labor costs. The zinc-plated steel construction provides reliable corrosion protection for indoor and protected outdoor environments, while the integrated flange distributes clamping force evenly to prevent material deformation. With external hex/slotted drive compatibility, these screws accommodate both power and manual installation tools, making them ideal for production lines and field service applications. The fully threaded configuration ensures maximum thread engagement and vibration resistance in thin sheet metal assemblies up to 0.05" thickness.

Specification Summary & Compliance

These No. 10-12 thread forming screws feature a 0.19" thread diameter with 12 threads per inch and 1/2" length for precise sheet metal fastening. Manufactured to exacting dimensional standards with Class 2A thread tolerances, they ensure consistent performance and interchangeability. The screws are designed for use with No. 21 drill bit (0.159" diameter) and comply with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, meeting international compliance requirements for industrial fasteners.