S-90380A295 Length 7/8" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction, ensuring long-lasting performance in various environments
• Reliable thread forming action with TRS tri-lobe shank design, creating strong, vibration-resistant threads in plastic materials without pre-tapping
• Easy installation and removal with Phillips No. 2 drive, providing secure tool engagement and reducing cam-out risks
• Optimized plastic fastening with fully threaded blunt tip design, minimizing material stress and preventing cracking in plastic applications
• Consistent dimensional accuracy with Class 2A thread tolerances, ensuring proper fit and reliable performance in assembly operations
• Enhanced environmental compliance meeting RoHS 3 and REACH standards, supporting sustainable manufacturing practices
• Versatile pan head profile with 0.322" diameter, offering excellent bearing surface and clean finished appearance

Professional Applications & Engineering Value

These zinc-plated steel TRS tapping screws deliver exceptional engineering value in plastic assembly applications where traditional fastening methods often fail. The thread forming technology with tri-lobe shank cross-section displaces plastic material rather than cutting it, creating zero clearance threads that resist loosening under vibration and thermal cycling. This makes them ideal for plastic enclosures, automotive trim, electrical housings, and consumer products where material integrity is critical. The combination of 7/8" length and No. 8 diameter provides optimal engagement depth for medium-thickness plastic components, while the Phillips drive system ensures efficient installation in high-volume production environments. The zinc plating offers essential corrosion protection, extending service life in both indoor and moderate outdoor applications.

Specification Summary & Compliance

This thread forming screw features precise 0.164" thread diameter with 16 TPI right-hand threading, manufactured to Class 2A thread tolerances for consistent performance. The TRS (Thread Rolling Screw) design follows industry-standard thread forming principles with tri-lobe shank geometry, compatible with No. 23 drill bit (0.154" diameter) for proper hole preparation in plastic materials. Compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industrial sectors.