S-99512A626 Length 1/4" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction for extended service life in demanding environments
• Maximum torque transmission and reduced cam-out through T10 Torx drive design for secure, efficient installations
• Excellent material displacement and vibration resistance with Tri-Lobe shank cross-section creating permanent threads in plastics
• Reliable thread forming action that eliminates chip formation and prevents material stress in plastic components
• Full 1/4" threading with 20 TPI provides maximum grip length and holding power in plastic assemblies
• Standard pan head profile offers low-profile fastening with good bearing surface for consistent clamping force
• Environmental compliance assurance meeting RoHS 3 and REACH standards for global industrial applications

Professional Applications & Engineering Value

These No. 5 thread forming screws are specifically engineered to address common challenges in plastic fastening applications where traditional fasteners often fail. The TRS thread forming design with Tri-Lobe shank cross-section displaces plastic material without cutting, eliminating problematic chips while creating strong, permanent threads that resist vibration loosening. The zinc-plated steel construction provides essential corrosion protection for industrial environments, while the T10 Torx drive system ensures maximum torque transfer during installation, reducing the risk of driver slippage and damaged screw heads. This combination of features makes these thread forming screws ideal for automotive plastics, electronic enclosures, and consumer products where reliable, vibration-resistant fastening is critical.

Specification Summary & Compliance

These thread forming screws feature a No. 5 screw size with 0.125" thread diameter and 20 threads per inch, fully threaded to 1/4" length. The TRS (Thread Rolling Screw) design utilizes a Tri-Lobe shank cross-section for thread forming applications in plastics, compatible with No. 32 drill bit (0.116" diameter) for proper hole preparation. Manufactured with right-hand threading and standard pan head profile with T10 Torx drive. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards for use in regulated industrial applications.