S-90190A255 Length 2 1/2" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction, extending service life in demanding industrial environments
• Exceptional holding power in sheet metal applications due to thread forming design that creates strong, permanent threads without chips
• Optimized drive efficiency with Phillips No. 2 drive system, providing reliable torque transfer and reduced cam-out risk
• Maximum material engagement through fully threaded 2-1/2" length, ensuring consistent grip across the entire fastener
• Easy installation alignment with pointed tip design, facilitating precise positioning in pre-drilled holes
• Broad compatibility with standard No. 21 drill bits and 0.025" maximum drilling thickness for versatile application use
• Regulatory compliance assurance meeting RoHS 3 and REACH standards for global manufacturing requirements

Professional Applications & Engineering Value

These zinc-plated steel tapping screws deliver exceptional performance in sheet metal assembly applications where vibration resistance and permanent fastening are critical. The thread forming design eliminates chip formation during installation, preventing contamination in sensitive equipment while creating stronger threads than cutting alternatives. The Phillips pan head configuration provides a low-profile finish with excellent drive stability, making these No. 10-12 thread fasteners ideal for HVAC systems, electrical enclosures, and automotive panels. With fully threaded construction and precise 0.19" thread diameter, these screws distribute clamping force evenly across the entire 2-1/2" length, preventing loosening under dynamic loads and thermal cycling common in industrial environments.

Specification Summary & Compliance

These thread forming sheet metal screws feature No. 10-12 thread specification with 12 threads per inch and 0.19" thread diameter, manufactured to standard A/AB tapping screw specifications. The zinc-plated steel construction provides consistent performance with right-hand threading and fully threaded design. Compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material restrictions are met for industrial applications requiring 0.025" maximum drilling thickness with No. 21 drill bit compatibility.