S-91675A323 Length 1/2" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 410 Stainless Steel construction, ideal for demanding industrial environments
• Efficient thread forming design creates strong, permanent threads in sheet metal without pre-tapping
• Flanged hex head provides wider bearing surface and eliminates need for separate washers
• External hex drive enables high-torque installation with standard tools for faster assembly
• Fully threaded pointed tip ensures easy starting and maximum thread engagement throughout material thickness
• Precision sizing compatibility with No. 29 drill bits (0.136") for optimal performance in sheet metal up to 0.025" thickness
• Environmental compliance meets RoHS 3 and REACH standards for global manufacturing requirements

Professional Applications & Engineering Value

These 410 Stainless Steel flanged hex head tapping screws deliver exceptional value in sheet metal fabrication and assembly operations. The thread forming technology eliminates chip removal concerns while creating stronger, vibration-resistant threads that outperform traditional cutting screws. The combination of external hex drive and flanged design provides superior clamp load distribution, preventing material distortion in thin-gauge applications. Engineered specifically for 0.025" maximum drilling thickness, these screws maintain structural integrity in HVAC systems, electronic enclosures, and automotive components where corrosion resistance and reliable fastening are critical. The fully threaded configuration ensures maximum holding power across the entire engagement length, reducing the risk of loosening under dynamic loads.

Specification Summary & Compliance

This No. 8-15 x 1/2" tapping screw features 0.164" thread diameter with 15 threads per inch in right-hand orientation, manufactured to precise dimensional standards for consistent performance. The thread forming (Type A/AB) design meets industry specifications for sheet metal applications. Compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental responsibility and global market acceptance. The screw is optimized for use with No. 29 drill bits (0.136" diameter) and provides reliable performance in materials up to 0.025" thickness.