S-91775A820 Length 3/4" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with Black-Oxide Steel coating, extending service life in demanding industrial environments
• Secure and efficient installation using No. 3 Phillips drive, minimizing cam-out and ensuring reliable fastening
• Excellent thread retention through thread forming design, creating strong, vibration-resistant connections in sheet metal
• Full-length threading provides maximum holding power across the entire 3/4" length for enhanced load distribution
• Clean aesthetic finish with standard oval head profile that sits flush with surfaces after 82° countersinking
• Precision thread engagement with 0.216" diameter and 11 TPI right-hand threads for consistent performance
• Regulatory compliance assurance meeting RoHS 3 and REACH standards for safe industrial applications

Professional Applications & Engineering Value

These thread forming tapping screws deliver exceptional value in sheet metal fabrication and assembly operations. The Black-Oxide Steel construction provides essential corrosion protection where moisture or environmental exposure could compromise fastener integrity. The A/AB tapping screw type with thread forming technology eliminates the need for pre-tapped holes, reducing installation time and labor costs while creating stronger thread engagement through material displacement rather than removal. The oval head design with 82° countersink angle ensures a flush finish that enhances both safety and aesthetics in visible applications. Engineered for 0.025" maximum drilling thickness, these Phillips drive screws maintain consistent performance across automotive, HVAC, electrical enclosures, and general metalworking applications where vibration resistance and long-term reliability are critical.

Specification Summary & Compliance

This No. 12 x 3/4" tapping screw features precise 0.216" thread diameter with 11 TPI right-hand threads in a fully threaded configuration. The oval head measures 0.412" diameter with standard profile, compatible with 3/16" drill bit preparation. Manufactured to industry standards for thread forming screws, this product demonstrates full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory acceptance for industrial procurement.