S-90935A148 Length 1/2" Tapping Screws

Key Features & Benefits at a Glance

• Enhanced corrosion resistance with black-oxide steel coating for extended service life in demanding industrial environments
• Superior thread-forming capability creates permanent, vibration-resistant threads in sheet metal without pre-tapping
• Optimized Phillips No. 2 drive provides secure tool engagement and reduces cam-out during high-torque installation
• Full threading along the 1/2" length ensures maximum grip and load distribution across the entire fastened joint
• Precision-matched No. 32 drill bit compatibility (0.116" diameter) eliminates guesswork and ensures proper hole sizing
• 18 threads per inch configuration delivers fine pitch control for secure fastening in thin sheet metal applications
• Pan head design with standard profile offers low-profile installation while providing ample bearing surface

Professional Applications & Engineering Value

These black-oxide steel tapping screws are engineered specifically for sheet metal applications where reliability and installation efficiency are critical. The thread forming technology (A/AB type) displaces material rather than cutting it, creating stronger threads that resist loosening under vibration - a common challenge in automotive, HVAC, and electronic enclosure assemblies. The combination of 0.138" thread diameter and 18 TPI provides optimal balance between thread engagement strength and material thickness compatibility, while the fully threaded design ensures consistent clamping force throughout the fastened joint. The pointed tip facilitates easy starting in pre-drilled holes, reducing installation time and improving production line efficiency.

Specification Summary & Compliance

These No. 6 x 1/2" tapping screws feature right-hand threads with standard Class 2A tolerance for consistent performance. Manufactured to A/AB tapping screw specifications with precise 0.27" head diameter and 0.097" head height dimensions. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across global industrial markets. Designed for use with No. 32 drill bits (0.116" diameter) in materials up to 0.025" maximum drilling thickness.