S-90390A111 10-24 x 1 1/4" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with Black-Phosphate Steel coating, ideal for harsh industrial environments.
• Enhanced torque transmission and reduced cam-out thanks to the T20 Torx drive design.
• Efficient thread cutting action with F-type tapping and UNC coarse thread for quick, secure fastening in various materials.
• Streamlined assembly and flush finish provided by the standard 82° flat head profile.
• Versatile material compatibility for reliable use in Aluminum, Brass, Cast Iron, and Sheet Metal.
• Full-length threading ensures maximum grip and holding power along the entire screw length.
• Precision installation with clear guidance for a No. 17 (0.173") drill bit, minimizing errors.

Professional Applications & Engineering Value

These thread cutting tapping screws are engineered to solve common industrial fastening challenges, such as stripping and material fatigue. The Black-Phosphate Steel coating provides a durable barrier against rust, extending service life in demanding applications like metal fabrication and machinery assembly. With a T20 Torx drive, users experience higher torque application without slippage, reducing tool wear and improving installation speed. The UNC coarse thread and F-type tapping design allow for easy thread formation in Aluminum, Brass, Cast Iron, and Sheet Metal, eliminating the need for pre-tapped holes and speeding up production lines. This combination of features ensures reliable performance in automotive, HVAC, and construction sectors, where precision and durability are critical.

Specification Summary & Compliance

This product adheres to standard dimensional tolerances, including UNC thread specifications and a standard 82° flat head profile. It is manufactured to meet industry requirements for thread cutting screws and is compliant with RoHS and REACH environmental directives, ensuring safe and sustainable use in various industrial applications.