S-99512A615 Length 1/4" Tapping Screws

Key Features & Benefits at a Glance

• Superior torque transmission with T8 Torx drive that prevents cam-out and ensures secure installation in plastic materials
• Excellent corrosion resistance through zinc-plated steel construction for extended service life in various environments
• Reliable thread-forming performance with TRS Tri-Lobe shank design that creates strong, vibration-resistant threads in plastic substrates
• Optimized plastic fastening with No. 3 screw size and 24 threads per inch specifically engineered for plastic applications
• Enhanced installation efficiency with fully threaded 1/4" length and blunt tip for precise positioning and maximum holding power
• Environmental compliance assurance meeting RoHS 3 and REACH standards for safe use in regulated industries
• Versatile pan head design with standard rounded profile providing a finished appearance and consistent clamping force

Professional Applications & Engineering Value

These No. 3 zinc-plated steel TRS plastic tapping screws deliver exceptional engineering value in plastic assembly applications where traditional fastening methods often fail. The specialized thread forming design with Tri-Lobe shank cross-section displaces plastic material rather than cutting it, creating zero clearance threads that resist loosening from vibration and thermal cycling. The T8 Torx drive system provides superior torque transmission compared to Phillips or slotted drives, reducing installation damage and improving production line efficiency. Engineered specifically for plastic fastening applications, these screws eliminate the need for inserts or additional components while maintaining material integrity. The combination of zinc-plated corrosion protection and precise 0.099" thread diameter ensures long-term reliability in electronics enclosures, automotive trim, consumer products, and industrial equipment where plastic components require secure, permanent fastening solutions.

Specification Summary & Compliance

These TRS thread forming screws feature precise dimensional specifications including No. 3 screw size, 0.099" thread diameter, 24 threads per inch, and 1/4" fully threaded length. The manufacturing follows standard tolerances for plastic tapping screws with right-hand thread direction and compatibility with No. 43 drill bit (0.089" diameter). The product maintains full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring they meet the latest restrictions on hazardous substances for global market acceptance and environmental safety standards.