S-92400A390 Length 1 1/4" Tapping Screws

Key Features & Benefits at a Glance

• Superior holding power in plastic materials thanks to the tri-lobe shank design that creates secure, vibration-resistant threads without pre-tapping
• Enhanced corrosion resistance through zinc-plated steel construction, ensuring long-term reliability in various industrial environments
• Quick and easy installation with external hex drive design that allows for high-torque application using standard tools
• Perfect thread formation with TRS thread forming technology that eliminates chip formation and prevents material stress cracks
• Optimized drilling compatibility with precise 3/16" drill bit sizing for accurate hole preparation and secure fastening
• Full-length threading provides maximum engagement strength along the entire 1-1/4" length for superior pull-out resistance
• Environmental compliance assurance meeting RoHS 3 and REACH standards for safe, sustainable manufacturing practices

Professional Applications & Engineering Value

Engineered specifically for plastic assembly applications, these No. 12 TRS thread forming screws solve critical challenges in manufacturing and industrial settings. The zinc-plated steel construction provides essential corrosion protection while maintaining high tensile strength. The innovative tri-lobe shank design displaces plastic material during installation, creating permanent, high-retention threads that won't loosen under vibration or thermal cycling. This thread forming technology eliminates the need for threaded inserts in many applications, reducing assembly time and component costs. The external hex drive ensures reliable torque transmission during installation, preventing cam-out issues common with other drive types. Perfect for automotive plastic components, electrical enclosures, and consumer products where secure fastening in plastic substrates is essential for product integrity and longevity.

Specification Summary & Compliance

This heavy-duty tapping screw features precise dimensional accuracy with 0.216" thread diameter and 11 threads per inch for consistent performance. The TRS thread forming design follows industry-standard specifications for plastic fastening applications. Manufacturing and material compliance includes full adherence to RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, ensuring safe use across regulated industries. The fully threaded configuration and blunt tip design provide controlled penetration and maximum thread engagement in plastic materials.