S-90077A304 Length 3" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction for extended service life in demanding industrial environments
• Dual-drive versatility with Phillips/Slotted head options for flexible installation using standard tools
• Maximum holding power through fully threaded design that maintains consistent grip throughout the entire 3" length
• Efficient thread-forming installation with pointed tip that eliminates need for pre-tapped holes in sheet metal up to 0.025" thickness
• Optimized for 3/16" drill bits ensuring precise fit and reduced installation time in sheet metal applications
• Reliable pan head design providing excellent bearing surface and preventing over-tightening in assembly operations
• Environmental compliance assurance meeting RoHS 3 and REACH standards for safe use in regulated industries

Professional Applications & Engineering Value

These No. 12 x 3" zinc-plated steel tapping screws deliver exceptional engineering value in sheet metal fabrication and industrial assembly applications. The thread-forming A/AB tapping screw design creates precise mating threads in base materials, eliminating the need for costly pre-tapping operations and reducing assembly time. The 0.216" thread diameter with 11 threads per inch provides optimal balance between installation speed and holding strength, while the fully threaded configuration ensures uniform stress distribution across the entire fastener length. The zinc-plated steel construction offers reliable corrosion protection in manufacturing environments, making these Phillips/Slotted drive screws ideal for HVAC systems, electrical enclosures, automotive components, and machinery assemblies where vibration resistance and long-term reliability are critical.

Specification Summary & Compliance

These tapping screws feature precision No. 12 screw size with 0.216" thread diameter and 11 threads per inch in right-hand thread direction. The 3" length and fully threaded design provide consistent performance in sheet metal applications requiring 3/16" drill bits. Manufacturing complies with industry standards for thread-forming tapping screws and includes full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industrial sectors.