S-90065A303 Length 2 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
• Maximum holding power through thread forming design that creates strong, permanent threads in sheet metal without pre-tapping
• Flush installation with standard flat head profile and 82° countersink angle for smooth, professional finishes
• Full-length threading provides consistent grip along the entire 2-1/2" length for enhanced load distribution
• Reliable driving performance with Phillips No. 3 drive that resists cam-out during installation
• Precision compatibility with 3/16" (0.1875") drill bits and 0.025" maximum drilling thickness for controlled applications
• Environmental compliance meeting RoHS 3 and REACH standards for safe, sustainable industrial use

Professional Applications & Engineering Value

These 18-8 stainless steel Phillips flat head tapping screws deliver exceptional engineering value in sheet metal applications where corrosion resistance and structural integrity are paramount. The thread forming design eliminates the need for pre-tapped holes, reducing installation time while creating stronger, more reliable connections that won't loosen under vibration. The fully threaded No. 12 configuration with 11 threads per inch ensures maximum surface contact and superior pull-out resistance. The 82° countersink angle and flat head profile provide clean, flush mounting that prevents snagging and maintains aerodynamic surfaces in HVAC systems, electronic enclosures, and industrial equipment. These Type A tapping screws are engineered to withstand demanding conditions while maintaining their mechanical properties and appearance.

Specification Summary & Compliance

These inch-system fasteners feature precision right-hand threads with 0.216" diameter and 11 threads per inch, manufactured to industry standards for Type A tapping screws. The flat head design with standard profile ensures proper seating in 82° countersunk applications. Compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming environmental safety and material quality. The screws are optimized for use with 3/16" drill bits in materials up to 0.025" thickness, providing reliable performance in industrial sheet metal fastening applications.