S-99461A405 Length 3/8" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction, ideal for harsh environments and outdoor plastic applications
• Exceptional holding power through advanced thread forming technology that creates strong, permanent threads in plastic materials
• Reduced installation torque with Tri-Lobe shank design that minimizes driving force while preventing material stress
• Reliable Phillips drive performance with No. 2 drive size ensuring secure engagement and reduced cam-out during installation
• Complete thread coverage with fully threaded design providing consistent clamping force along the entire 3/8" length
• Industry compliance assurance meeting RoHS 3 and REACH environmental standards for safe industrial use
• Optimized plastic compatibility with blunt tip design that prevents material cracking during installation

Professional Applications & Engineering Value

This 316 stainless steel TRS thread forming screw delivers exceptional engineering value in plastic assembly applications where corrosion resistance and material integrity are critical. The Tri-Lobe shank cross-section and thread forming technology work synergistically to displace plastic material without creating chips or stress fractures, ensuring reliable performance in automotive components, electrical enclosures, and outdoor equipment. The fully threaded design provides uniform stress distribution, while the Phillips drive system offers familiar, efficient installation. Particularly valuable in marine environments, chemical processing equipment, and food industry applications, this screw maintains its mechanical properties and corrosion resistance even when exposed to chlorides and acidic conditions, making it an optimal choice for demanding plastic fastening requirements.

Specification Summary & Compliance

This No. 8 x 3/8" thread forming screw features precise inch system dimensions with 16 threads per inch and standard Class 2A thread tolerances. The TRS (Thread Rolling Screw) type incorporates Tri-Lobe shank technology for optimal performance in plastic materials. Manufactured to industry standards for thread forming screws, this fastener is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use in industrial applications worldwide. The screw is engineered for use with No. 29 drill bits (0.136" diameter) in plastic assembly operations.