S-92470A308 Length 4" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction for long-lasting performance in harsh environments
• Efficient thread forming technology creates strong, permanent threads in sheet metal without chips or debris
• Optimized for 0.1875" drill bits with precise 0.216" thread diameter for secure fastening in sheet metal up to 0.025" thickness
• Full 4" threading provides maximum grip length and holding power across the entire fastener
• Phillips No. 3 drive design ensures reliable installation with standard tools and reduced cam-out risk
• Pan head profile offers excellent bearing surface for secure clamping force distribution
• Environmental compliance with RoHS 3 and REACH standards for safe, sustainable manufacturing

Professional Applications & Engineering Value

These No. 12 x 4" 18-8 stainless steel tapping screws deliver exceptional engineering value in sheet metal applications where corrosion resistance and thread integrity are critical. The thread forming technology eliminates the need for pre-tapped holes while creating strong, vibration-resistant connections that won't loosen under stress. The fully threaded design ensures maximum engagement in various material thicknesses, while the Phillips pan head provides a low-profile, secure fastening solution. Manufactured from 18-8 stainless steel, these A/AB type screws maintain their integrity in humid, chemical, and outdoor environments, making them ideal for HVAC systems, electrical enclosures, automotive components, and industrial equipment where corrosion-resistant fasteners are essential for long-term reliability.

Specification Summary & Compliance

These thread forming tapping screws feature precise No. 12 size with 0.216" thread diameter and 11 threads per inch, designed for use with 3/16" (0.1875") drill bits in sheet metal applications. The screws maintain standard Class 2A thread tolerances and right-hand threading direction with pointed tip for easy starting. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe, sustainable production practices. The Phillips No. 3 drive and pan head configuration meet industry standards for reliable installation and performance in demanding sheet metal fastening applications.