S-90065A223 Length 2 1/4" 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 thread-forming capability creates secure, permanent threads in sheet metal without pre-tapped holes
• Optimal flush installation with standard flat head profile and 82° countersink angle for smooth, professional finishes
• Enhanced driving efficiency through Phillips No. 2 drive design, reducing cam-out and improving installation speed
• Maximum holding power achieved through full threading along the entire 2-1/4" length for superior grip strength
• Precise installation guidance with pointed tip and compatible No. 21 drill bit (0.159") for accurate positioning
• Reliable right-hand threading ensures consistent performance in standard assembly applications

Professional Applications & Engineering Value

These No. 10-12 thread forming tapping screws are specifically engineered for demanding sheet metal applications where reliability and corrosion resistance are paramount. The 18-8 stainless steel composition provides exceptional durability against environmental factors, while the Type A thread forming design eliminates the need for pre-tapped holes, significantly reducing installation time and labor costs. The Phillips flat head configuration with 82° countersink angle ensures flush mounting in various metal thicknesses, preventing snagging and maintaining aerodynamic surfaces. The fully threaded construction distributes clamping force evenly along the entire fastener length, preventing loosening from vibration and thermal cycling common in industrial settings. These tapping screws deliver consistent performance in HVAC systems, electrical enclosures, automotive panels, and machinery assemblies where secure metal-to-metal fastening is critical.

Specification Summary & Compliance

Manufactured to precise dimensional standards with Class 2A thread tolerances for consistent fit and performance. These Type A thread forming screws comply with industry standards for tapping screw applications, featuring a standard flat head profile and right-hand threading. The 18-8 stainless steel material meets corrosion resistance requirements for industrial applications, while the manufacturing process adheres to quality specifications ensuring reliable performance in sheet metal fastening scenarios. Compatible with standard No. 21 drill bits (0.159") for precise hole preparation and optimal thread formation.