S-99461A220 Length 1/4" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 Stainless Steel construction for long-lasting performance in humid or demanding environments.
• Excellent vibration resistance due to the thread forming (TRS) and tri-lobe shank design, creating secure, permanent threads in plastic.
• Efficient installation and reduced cam-out with the Phillips No. 2 drive, providing good torque transfer and ease of use.
• Minimized risk of material cracking as the thread forming action displaces rather than removes plastic, ideal for brittle plastics.
• Streamlined assembly process with a blunt tip and standard pan head for quick alignment and a low-profile, finished appearance.
• Reliable performance in plastic assemblies with a precise No. 6 size and 1/4" length, designed for a recommended No. 32 drill bit (0.116" diameter).
• Compliance with global environmental standards including RoHS 3 and REACH, ensuring safety and regulatory acceptance for industrial use.

Professional Applications & Engineering Value

These No. 6 x 1/4" TRS tapping screws are engineered to solve common fastening challenges in plastic assembly. The 18-8 stainless steel provides excellent resistance to rust and corrosion, which is critical in applications exposed to moisture or chemicals. The thread forming technology, combined with the tri-lobe shank cross-section, ensures that the screw forms strong, load-bearing threads in the plastic material without creating chips. This eliminates the need for tapping operations separately and provides superior resistance to loosening under vibration, making these Phillips drive screws ideal for electronics enclosures, automotive trim, consumer appliances, and other plastic fastening scenarios where reliability and durability are paramount.

Specification Summary & Compliance

This screw conforms to TRS (Thread Rolling Screw) standards for thread forming fasteners. Key dimensional specifications include a thread diameter of 0.138", approximately 19 threads per inch, and a fully threaded length of 1/4". The screw is designed for use with a No. 32 drill bit (0.116" diameter). The product is manufactured to be RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting stringent industrial safety and environmental regulations.