S-90417A118 Length 3/8" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with Black-Oxide Steel coating, extending service life in various industrial environments
• Excellent thread-forming capability through Tri-Lobe shank design, creating strong, permanent threads in plastic materials without pre-tapping
• Enhanced driving efficiency with No. 1 Phillips drive, reducing cam-out and ensuring secure installation
• Optimal material displacement with thread forming technology, minimizing stress cracking in plastic components
• Reliable fastening performance with fully threaded 3/8" length, providing consistent holding power throughout the engagement
• Environmental compliance assurance meeting RoHS 3 and REACH standards, suitable for regulated industries
• Precision compatibility with No. 37 drill bit (0.104" diameter), ensuring proper fit and reduced installation errors

Professional Applications & Engineering Value

This No. 4 TRS tapping screw delivers exceptional engineering value for plastic assembly applications where material integrity is paramount. The Black-Oxide Steel construction provides essential corrosion protection while the Tri-Lobe shank cross-section and thread forming technology work synergistically to displace plastic material without creating chips or debris. This design approach eliminates the need for pre-tapped holes and significantly reduces the risk of stress cracking in brittle plastics. The Phillips drive style ensures widespread compatibility with standard industrial drivers, while the 3/8" length and 0.112" thread diameter provide optimal engagement depth for medium-duty plastic fastening. These tapping screws for plastic are particularly valuable in electronics enclosures, automotive trim components, and consumer products where reliable, vibration-resistant fastening is critical.

Specification Summary & Compliance

This thread forming screw features a 0.112" thread diameter with 20 threads per inch and 3/8" length in accordance with standard inch measurements. The TRS (Thread Rolling Screw) design incorporates a Tri-Lobe shank cross-section and blunt tip for optimal performance in plastic materials. Manufacturing precision ensures consistent thread engagement and reliable fastening performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, making it suitable for use in regulated industries and international markets.