S-90398A247 Length 1" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with chrome-plated steel construction for extended service life in harsh environments
• Enhanced load distribution through integrated steel flat washer that prevents surface damage and maintains joint integrity
• Maximum holding power with thread forming technology that creates strong, vibration-resistant threads in sheet metal
• Wide truss head design provides larger bearing surface for improved stability and reduced installation stress
• Optimized for 0.025" thick sheet metal with precise No. 21 drill bit compatibility for clean, accurate installations
• Time-saving installation with Phillips No. 2 drive that offers reliable torque transfer and prevents cam-out
• Complete thread engagement with fully threaded design ensuring consistent fastening strength along the entire 1" length

Professional Applications & Engineering Value

This chrome-plated steel tapping screw delivers exceptional performance in sheet metal fastening applications where corrosion resistance and vibration durability are critical. The thread forming technology (A/AB type) eliminates the need for pre-tapped holes while creating stronger, more reliable threads that won't loosen under dynamic loads. The integrated steel flat washer distributes clamping force evenly, preventing material deformation in thin-gauge metals up to 0.025" thickness. The Phillips truss head design combines easy installation with a low-profile, wide-bearing surface ideal for HVAC systems, electrical enclosures, and industrial equipment where space constraints and long-term reliability are paramount. These sheet metal screws provide engineering-grade solutions for construction, manufacturing, and maintenance applications requiring precision fastening performance.

Specification Summary & Compliance

This No. 10-12 x 1" tapping screw features precise 0.19" thread diameter with 12 threads per inch and right-hand threading conforming to standard inch measurements. The thread forming (Type A/AB) tapping method ensures consistent performance in sheet metal applications. Manufactured with fully threaded design and compatible with No. 21 drill bit (0.159" diameter) for optimal installation in materials up to 0.025" thickness. Constructed from high-quality chrome-plated steel with integrated steel flat washer (1/2" OD) for enhanced performance. Complies with industry standards for tapping screws and meets relevant material specifications for industrial fastening applications.