S-93945A055 Length 1 1/2" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction for long-lasting performance in harsh industrial environments
• Efficient thread forming technology creates strong, permanent threads in sheet metal without pre-tapping, reducing installation time
• Optimal flush mounting with standard flat head profile and 82° countersink angle for smooth, professional finishes
• Enhanced torque transmission through square drive design prevents cam-out and ensures secure fastening
• Maximum material engagement with fully threaded 1-1/2" length providing superior holding power in sheet metal up to 0.025" thickness
• Comprehensive regulatory compliance meeting RoHS 3 and REACH standards for safe industrial use
• Precision compatibility with standard 3/16" drill bits for straightforward installation in metal fabrication applications

Professional Applications & Engineering Value

These No. 12 sheet metal tapping screws deliver exceptional engineering value in industrial fastening applications where reliability and corrosion resistance are paramount. The 18-8 stainless steel composition provides excellent protection against rust and chemical exposure, making these thread forming screws ideal for HVAC systems, electrical enclosures, and metal fabrication projects. The Type A/AB thread forming design eliminates the need for separate tapping operations by cold-forming mating threads directly into sheet metal substrates, creating stronger thread engagement than cutting alternatives. This flat head configuration with 82° countersink ensures flush mounting in precision applications while the square drive system offers superior torque transmission without stripping. Engineered specifically for sheet metal applications up to 0.025" thickness, these screws provide secure, vibration-resistant fastening in demanding industrial environments.

Specification Summary & Compliance

These thread forming tapping screws feature precision No. 12 size with 1-1/2" fully threaded length and standard Class 2A thread tolerances. The manufacturing conforms to Type A/AB thread forming standards with right-hand threading and 11 threads per inch. Compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and industrial suitability. The screws are engineered with 0.216" thread diameter and pointed tip for easy starting in pre-drilled 3/16" (0.1875") holes.