S-91775A743 Length 1/2" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with Black-Oxide Steel finish, extending service life in demanding industrial environments
• Efficient thread forming design creates strong, permanent threads in sheet metal without chip removal
• Undercut oval head profile provides flush seating and professional appearance while preventing surface damage
• Optimized for sheet metal applications with maximum 0.025" drilling thickness capability and No. 21 drill bit compatibility
• Reliable Phillips No. 2 drive system ensures secure installation and reduces cam-out during high-torque applications
• Full threading and pointed tip enables faster starts and consistent engagement throughout the material thickness
• Comprehensive compliance assurance with RoHS 3 and REACH regulations for global market acceptance

Professional Applications & Engineering Value

These No. 10 thread forming tapping screws deliver exceptional performance in sheet metal assembly applications where vibration resistance and permanent fastening are critical. The Black-Oxide Steel construction provides enhanced corrosion protection compared to standard finishes, making these Phillips oval head screws ideal for HVAC systems, electrical enclosures, and industrial equipment manufacturing. The thread forming (A/AB) design eliminates the need for pre-tapped holes while creating stronger thread engagement through material displacement rather than cutting. This results in zero chip generation, preventing contamination in sensitive assemblies. The undercut oval head profile with 82° countersink angle ensures clean, flush installations without protruding hardware, while the fully threaded right-hand orientation with 12 threads per inch provides consistent clamping force across the entire 1/2" length.

Specification Summary & Compliance

These tapping screws feature precise No. 10 screw size with 0.19" thread diameter and 12 threads per inch in right-hand orientation. The oval head design measures 0.362" in diameter with 0.142" head height and incorporates an undercut profile for superior seating. Manufactured to A/AB tapping screw type standards with thread forming method and pointed tip for easy starts. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use in global industrial applications.