S-99461A240 Length 1/2" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for demanding environments and long-term reliability.
• Excellent thread-forming capability in plastics, reducing the risk of material cracking and ensuring secure, vibration-resistant assemblies.
• Enhanced driving efficiency with a Phillips No. 2 drive, providing common tool compatibility and reducing cam-out during installation.
• Maximum holding power due to the tri-lobe shank design, which displaces material to create strong, reliable threads without pre-tapping.
• Full threading for consistent grip along the entire 1/2" length, offering uniform clamping force in various plastic thicknesses.
• Compliance with environmental regulations, including RoHS 3 and REACH, ensuring safe use in regulated industries and global markets.
• Optimized for use with a No. 32 drill bit (0.116" diameter), simplifying installation and ensuring proper hole sizing for secure fastening.

Professional Applications & Engineering Value

These 18-8 stainless steel TRS plastic tapping screws are engineered to address common challenges in plastic assembly, such as stress cracking and thread stripping. The tri-lobe shank cross-section and thread-forming (TRS) design displace plastic material during installation, creating strong, permanent threads that resist loosening under vibration. This makes them ideal for plastic fastening in electronics enclosures, automotive components, and consumer appliances where corrosion resistance and durability are critical. The Phillips drive ensures widespread tool compatibility, reducing installation time and improving production efficiency in high-volume manufacturing settings.

Specification Summary & Compliance

This screw features a No. 6 size with a 1/2" length, 0.138" thread diameter, and approximately 19 threads per inch. It is fully threaded with a blunt tip and right-hand thread direction, designed for use in plastics with a recommended No. 32 drill bit (0.116" diameter). Manufacturing adheres to standard thread-forming specifications for TRS tapping screws. The product is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting stringent environmental and safety regulations for industrial use.