S-92400A320 Length 3/4" Tapping Screws

Key Features & Benefits at a Glance

• Superior pull-out resistance in plastics thanks to the tri-lobe shank design that displaces material to create durable, high-retention threads
• High-torque installation capability with the external hex drive, allowing for secure fastening with standard tools and reducing the risk of stripping
• Maximum holding power and material engagement from the fully threaded design, ensuring a consistent, strong grip along the entire fastener length
• Excellent corrosion resistance provided by the zinc-plated steel construction, extending the screw's service life in various industrial environments
• Optimized for plastic assembly with a thread forming (TRS) tapping method that eliminates chips and prevents material cracking
• Reliable dimensional consistency with a No. 10 screw size, 14 TPI, and 3/4" length for precise fit and predictable performance in pre-drilled holes
• Compliance with stringent environmental regulations including RoHS 3 and REACH, ensuring safety and suitability for global industrial supply chains

Professional Applications & Engineering Value

These No. 10 TRS tapping screws are precision-engineered for robust plastic applications, where traditional fasteners often fail. The thread forming (TRS) design with a tri-lobe shank cold-forms mating threads in ductile plastics, eliminating chips and reducing stress concentration to prevent cracking—a common failure point in brittle polymers. Made from zinc-plated steel, they resist corrosion in humid or demanding environments, while the external hex drive ensures high torque transfer without cam-out, speeding up assembly in automated or manual processes. The fully threaded body and blunt tip provide maximum engagement in pre-drilled holes (sized for a No. 21 drill bit), making them ideal for electronics enclosures, automotive plastic components, and appliance assemblies where vibration resistance and long-term reliability are critical.

Specification Summary & Compliance

This fastener features a No. 10 screw size with a 0.19" thread diameter and 14 threads per inch, in a 3/4" length. The TRS (Thread Rolling Screw) type is designed for thread forming in plastics, with a tri-lobe shank cross-section and external hex drive (0.312" head width). It is recommended for use with a No. 21 drill bit (0.159" diameter). The product is manufactured from zinc-plated steel and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets international environmental and safety standards for industrial components.