S-90434A116 Length 1/2" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction for extended service life in demanding environments
• Eliminates pre-drilling requirements through advanced TRS thread forming technology, reducing installation time and labor costs
• Exceptional pull-out resistance in plastic materials thanks to the tri-lobe shank design that creates secure, permanent threads
• Flush mounting capability with 82° countersink angle and flat head profile for smooth, professional-looking finishes
• Reliable driving performance with Phillips No. 2 drive that minimizes cam-out and tool slippage during installation
• Full-length threading provides maximum thread engagement and holding power across the entire fastener length
• Environmental compliance assurance meeting RoHS 3 and REACH standards for safe, sustainable manufacturing practices

Professional Applications & Engineering Value

These zinc-plated steel TRS thread forming screws deliver exceptional value in plastic fastening applications where traditional fasteners fail. The innovative tri-lobe shank cross-section displaces plastic material during installation, creating precisely formed internal threads without generating chips or debris that could compromise assembly integrity. This thread forming technology eliminates the need for separate tapping operations while providing superior resistance to vibration loosening and pull-out forces. The 82° countersink angle ensures clean, flush mounting in various plastic materials, while the Phillips No. 2 drive system offers reliable torque transfer during high-volume assembly operations. Engineered specifically for plastic components in automotive, electronics, and consumer goods manufacturing, these screws prevent material cracking and stress failure common with standard fasteners.

Specification Summary & Compliance

This No. 6 x 1/2" tapping screw features precise dimensional specifications including 0.138" thread diameter with 19 threads per inch and standard Class 2A thread tolerances. The TRS thread forming design follows industry-standard thread forming principles for plastic applications, requiring a 1/8" (0.125") drill bit for proper installation. Manufacturing and material compliance includes full adherence to RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across global markets.