S-99663A213 Length 1/2" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction for extended service life in harsh environments
• Efficient thread forming design creates strong, permanent threads in sheet metal without requiring pre-tapped holes
• Integrated flange eliminates need for separate washers, providing superior load distribution and faster installation
• Dual external hex/slotted drive options offer installation flexibility with standard tools while preventing cam-out
• Full threading along the entire 1/2" length ensures maximum grip strength and uniform stress distribution
• Precision No. 8 size with 15 TPI thread pitch delivers optimal holding power for sheet metal applications
• Environmentally compliant construction meets RoHS 3 and REACH standards for sustainable manufacturing

Professional Applications & Engineering Value

These 316 stainless steel flanged tapping screws are engineered specifically for sheet metal applications where corrosion resistance and structural integrity are paramount. The thread forming design eliminates the need for pre-tapped holes, reducing installation time and labor costs while creating stronger, more reliable connections. The integrated flange provides enhanced bearing surface, preventing pull-through in thin materials and distributing load more effectively than standard screws. With their external hex/slotted drive compatibility, these A/AB type tapping screws offer installation versatility across various assembly environments. The fully threaded configuration ensures maximum engagement in materials up to the specified thickness, making them ideal for HVAC systems, electronic enclosures, automotive components, and industrial equipment where vibration resistance and long-term performance are critical.

Specification Summary & Compliance

These No. 8 x 1/2" flanged tapping screws feature a 0.164" thread diameter with 15 threads per inch and are designed for use with No. 29 drill bits (0.136" diameter) in materials up to 0.025" maximum drilling thickness. Manufactured to A/AB tapping screw standards with right-hand thread direction and pointed tip for easy starting. The products are fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring they meet the latest international standards for hazardous substance restrictions.