S-90065A212 Length 3 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 countersinking capability with 82° flat head profile for flush mounting and smooth surface finishes
• Full-length threading ensures maximum grip strength and uniform load distribution across the entire fastener length
• Precision Phillips drive (No. 2 size) provides secure tool engagement and reduces cam-out during installation
• Comprehensive regulatory compliance with RoHS 3 and REACH standards for safe, environmentally responsible manufacturing
• Perfect drill bit compatibility with No. 29 size (0.136" diameter) for precise hole preparation and secure fastening

Professional Applications & Engineering Value

These Type A thread forming screws deliver exceptional value in sheet metal applications where vibration resistance and material integrity are critical. The 18-8 stainless steel composition provides excellent corrosion resistance, making these Phillips flat head tapping screws ideal for outdoor equipment, HVAC systems, and industrial machinery exposed to moisture or chemicals. The thread forming design displaces material rather than removing it, creating stronger threads with superior pull-out resistance compared to traditional cutting screws. With 0.164" thread diameter and 15 TPI precision, these fasteners maintain consistent clamping force while the 82° countersink angle ensures clean, flush installations in thin gauge materials up to 0.025" thickness.

Specification Summary & Compliance

These No. 8 x 3-1/2" tapping screws feature standard inch measurements with fully threaded configuration and right-hand thread direction. The manufacturing adheres to industry standards for thread forming Type A screws with precise dimensional accuracy. Compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmentally responsible production and material safety. The combination of 0.164" thread diameter, 15 TPI thread pitch, and specified No. 29 drill bit compatibility (0.136" diameter) provides engineering professionals with reliable, standardized fastening solutions for demanding industrial applications.