S-90065A255 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
• Excellent holding power through thread forming technology that creates strong, permanent threads in sheet metal without pre-tapping
• Flush installation with standard 82° flat head profile and proper countersinking for smooth, professional finishes
• Full-length threading ensures maximum grip along the entire 2-1/2" length for enhanced load distribution
• Optimized compatibility with No. 21 drill bit (0.159" diameter) for precise installation in sheet metal up to 0.025" thickness
• Reliable drive performance featuring Phillips No. 2 drive for secure torque transmission and reduced cam-out
• Environmental compliance meeting RoHS 3 and REACH standards for safe use in regulated industries

Professional Applications & Engineering Value

These Type A tapping screws are specifically engineered for sheet metal applications where reliable fastening is critical. The 18-8 stainless steel composition provides exceptional corrosion resistance, making these Phillips flat head screws ideal for outdoor equipment, HVAC systems, and industrial machinery exposed to moisture or chemicals. The thread forming design eliminates the need for pre-tapped holes, reducing installation time and labor costs while creating strong, vibration-resistant connections. The 82° countersink angle ensures flush mounting in sheet metal panels, preventing snagging and maintaining aerodynamic profiles. With fully threaded construction and right-hand threading, these industrial fasteners deliver maximum pull-out resistance and uniform stress distribution across the entire engagement length.

Specification Summary & Compliance

This No. 10-12 tapping screw features a 0.19" thread diameter with approximately 12 threads per inch, manufactured to standard Type A thread forming specifications. The flat head design incorporates an 82° countersink angle for proper seating in sheet metal applications. All dimensional tolerances meet industry standards for sheet metal fasteners, ensuring consistent performance and compatibility. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, guaranteeing environmental safety and regulatory acceptance for industrial use across various sectors.