S-92400A530 Length 1 1/4" Tapping Screws

Key Features & Benefits at a Glance

• Superior holding power in plastic materials thanks to the Tri-Lobe shank cross-section, which displaces material to create durable, vibration-resistant threads without cutting or creating chips.
• Excellent corrosion resistance provided by 18-8 Stainless Steel construction, ensuring long-term reliability and performance in various environments.
• High-torque installation capability with the external hex head drive, allowing for secure fastening and reducing the risk of tool slippage during assembly.
• Maximum thread engagement and pull-out strength from the fully threaded design, providing a consistent and secure grip along the entire fastener length in plastic applications.
• Streamlined installation process as it is designed for use with a standard No. 29 drill bit (0.136" diameter), eliminating the need for a separate tapping operation.
• Enhanced stability and load distribution from the integrated flange, which acts as a washer to prevent the screw head from pulling into the material.
• Compliance with stringent environmental regulations, being RoHS 3 and REACH compliant, making it suitable for use in regulated industries and global markets.

Professional Applications & Engineering Value

This No. 8 TRS thread forming screw is engineered specifically for high-performance fastening in plastic materials. The Tri-Lobe shank design is a key differentiator; it forms threads by compressing the plastic, which results in zero chip production and a tighter, more reliable fit that resists loosening under vibration—a common failure point in plastic assemblies. Manufactured from 18-8 Stainless Steel, it offers inherent corrosion resistance, crucial for applications exposed to moisture or harsh conditions. The combination of an external hex drive and a blunt tip ensures easy, precise installation with standard tools, maximizing efficiency on the production line. This screw is an ideal fastening solution for industries such as automotive, electronics, and consumer goods, where durable and secure plastic-to-plastic or plastic-to-metal joints are required.

Specification Summary & Compliance

This screw conforms to standard inch measurements with a thread diameter of 0.164" and 16 threads per inch. The TRS (Thread Rolling Screw) type and thread forming tapping method are designed for creating strong threads in ductile materials. The 1-1/4" length and 1/4" hex head provide standard dimensions for compatibility. It is recommended for use with a No. 29 drill bit (0.136" diameter) for proper hole preparation. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations.