S-99461A105 Length 1/8" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ensuring long-term reliability in humid or demanding environments
• Efficient thread forming with Tri-Lobe shank design creates strong, secure threads in plastic without pre-tapping, reducing assembly time
• Optimized for plastic applications with blunt tip and thread forming technology to prevent material cracking and ensure clean installations
• Secure fastening through fully threaded design and Phillips No. 1 drive, providing consistent torque transfer and reduced cam-out risk
• Wide compatibility with standard No. 37 drill bit (0.104" diameter), simplifying hole preparation in various plastic materials
• Environmental compliance with RoHS 3 and REACH regulations, making them suitable for global supply chains and sensitive applications
• Durable pan head design offers a low-profile, rounded finish that resists snagging and provides reliable clamping force

Professional Applications & Engineering Value

This No. 4 x 1/8" TRS tapping screw delivers exceptional value in plastic assembly operations where material integrity and installation efficiency are critical. The 18-8 stainless steel composition provides excellent corrosion resistance, making these screws ideal for outdoor equipment, electronic enclosures, and automotive components exposed to moisture. The thread forming action of the Tri-Lobe shank displaces plastic material rather than cutting it, creating zero clearance fit that resists vibration loosening and eliminates chip formation. Combined with the Phillips drive system and blunt tip, engineers achieve faster installation cycles without risking plastic fracture or strip-out, particularly in brittle polymers. These features make this tapping screw for plastic a reliable choice for high-volume manufacturing where consistent performance and regulatory compliance are mandatory.

Specification Summary & Compliance

This tapping screw features a 0.112" thread diameter with 20 TPI right-hand threads and fully threaded design for maximum engagement. The TRS (Thread Rolling Screw) type with standard pan head (0.219" diameter) ensures consistent performance in plastic substrates. Manufactured to industry standards for thread forming screws, it requires a No. 37 drill bit (0.104" diameter) for proper hole preparation. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, meeting international environmental and safety requirements for industrial components.