S-99397A729 Length 10 mm Tapping Screws

Key Features & Benefits at a Glance

• Superior torque transmission with Torx Plus IP20 drive, reducing cam-out and tool wear for efficient assembly
• Excellent corrosion resistance from zinc-plated steel construction, ensuring long-term reliability in various environments
• Secure fastening in plastic materials due to the tri-lobe shank design, which prevents loosening under vibration
• Easy installation and reduced cracking with thread-forming TRS type and blunt tip, minimizing stress on plastic components
• High holding power from fully threaded 1.59mm pitch design, providing consistent grip in plastic assemblies
• Broad compatibility with standard No. 23 drill bits, simplifying hole preparation and reducing setup time
• Compliance with environmental standards including RoHS 3 and REACH, ensuring safe use in regulated industries

Professional Applications & Engineering Value

These M4.55 x 10mm zinc-plated steel TRS tapping screws are engineered specifically for plastic fastening applications, where traditional screws may cause material failure. The thread-forming design with a tri-lobe shank creates strong, permanent threads in plastic substrates without pre-tapping, reducing assembly steps and labor costs. The Torx Plus IP20 drive ensures high torque transmission with minimal slippage, ideal for automated production lines requiring precise fastening. Combined with a fully threaded blunt tip and 1.59mm pitch, these screws distribute load evenly to prevent stress concentration and cracking in sensitive plastic components like enclosures, automotive trim, and consumer electronics housings. This makes them a reliable choice for engineers seeking durable, vibration-resistant connections in plastic assembly projects.

Specification Summary & Compliance

These metric tapping screws feature an M4.55 size with 10mm length, 1.59mm approximate thread pitch, and right-hand threading for standard applications. Manufactured with zinc-plated steel and a pan head style, they ensure dimensional accuracy suitable for plastic fastening. Compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) standards, confirming they are free of hazardous substances and safe for industrial use.