S-99461A962 Length 5 mm Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ensuring long-term reliability in humid or chemically exposed environments.
• Excellent thread-forming capability with TRS design, creating strong, permanent threads in plastic without pre-tapping, reducing assembly time and tooling costs.
• Secure and efficient drive engagement via Phillips No. 1 drive, minimizing cam-out and allowing for consistent torque application during installation.
• Optimized for plastic materials with a 1.79 mm thread pitch and blunt tip, preventing material cracking and ensuring reliable, vibration-resistant fastening.
• Full threading along the 5 mm length maximizes grip and load distribution, enhancing pull-out strength in plastic substrates.
• Pan head design with 7 mm diameter provides a low-profile, finished appearance and broad bearing surface, reducing the risk of surface damage.
• Compliance with environmental regulations including RoHS 3 and REACH, making them safe for use in regulated industries and global markets.

Professional Applications & Engineering Value

These M4 TRS thread forming screws are specifically engineered to address common challenges in plastic fastening, such as stress cracking, strip-out, and weak thread retention. The 18-8 stainless steel material offers excellent strength and corrosion resistance, ideal for outdoor equipment, electronic enclosures, and automotive components where durability is critical. The thread forming (TRS) design displaces plastic material during installation, creating tight, high-strength threads that resist loosening under vibration. Combined with a Phillips drive and fully threaded shank, these screws ensure quick, reliable installation in plastic applications, reducing assembly errors and improving product lifespan in industrial settings.

Specification Summary & Compliance

This M4 x 5mm screw features a fully threaded design with an approximate thread pitch of 1.79 mm, conforming to standard metric dimensions for precise fit. The TRS thread forming type and blunt tip are optimized for use with recommended drill bit size No. 30 (0.1285" diameter). It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and suitability for global industrial applications.