S-90077A257 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
• Efficient thread forming technology creates strong, permanent threads in sheet metal without pre-tapping requirements
• Dual-drive versatility with Phillips/Slotted pan head design accommodates multiple tool types for flexible installation
• Maximum holding power through fully threaded design and pointed tip for precise alignment and deep penetration
• Optimized compatibility with standard No. 21 drill bits (0.159" diameter) for streamlined installation processes
• Reliable performance in sheet metal applications up to 0.025" thickness with consistent thread engagement
• Environmental compliance assurance meeting RoHS 3 and REACH standards for responsible manufacturing

Professional Applications & Engineering Value

These No. 10-12 x 3" zinc-plated steel tapping screws deliver exceptional engineering value in sheet metal fabrication and assembly operations. The thread forming technology eliminates the need for separate tapping operations, significantly reducing installation time and labor costs while creating stronger, more reliable threads that resist loosening under vibration. The A/AB tapping screw type with right-hand threading and fully threaded design ensures maximum grip length and uniform stress distribution across the entire fastener length. The pan head profile with dual Phillips/Slotted drive options provides versatility for various assembly line tools while maintaining a low-profile appearance. These screws are specifically engineered to solve common industrial challenges including material fatigue, corrosion susceptibility, and installation efficiency in sheet metal applications requiring durable, long-lasting fastening solutions.

Specification Summary & Compliance

This tapping screw features precise dimensional accuracy with 0.19" thread diameter and 12 threads per inch configuration. The thread forming tapping method follows industry standards for A/AB tapping screw types, ensuring reliable performance in sheet metal applications. Manufacturing compliance includes full adherence to RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, confirming the absence of restricted hazardous substances. The product maintains consistent quality with 3" length, 0.373" head diameter, and compatibility with standard No. 21 drill bits (0.159" diameter) for professional installation requirements.