S-90434A122 Length 1/2" Tapping Screws

Key Features & Benefits at a Glance

• Superior holding power in plastics through advanced TRS thread forming design that eliminates the need for pre-drilled threads
• Enhanced corrosion resistance with Black Oxide Steel construction for extended service life in demanding environments
• Optimal material displacement thanks to the Tri-Lobe shank cross-section that creates secure, vibration-resistant fastenings
• Flush installation capability with the 82° countersink angle and flat head design for smooth, professional-looking finishes
• Reliable driving performance with Phillips No. 2 drive that prevents cam-out and ensures consistent installation torque
• Full-length threading provides maximum engagement and pull-out resistance across the entire 1/2" length
• Environmental compliance assurance meeting RoHS 3 and REACH standards for sustainable manufacturing practices

Professional Applications & Engineering Value

Engineered specifically for plastic assembly applications, these thread forming screws solve critical challenges in modern manufacturing. The TRS (Thread Rolling Screw) design with Tri-Lobe shank cross-section displaces plastic material rather than cutting it, creating zero clearance fit that resists vibration loosening and provides exceptional holding power. The Black Oxide Steel construction offers superior corrosion protection while maintaining the mechanical strength needed for demanding plastic fastening scenarios. The combination of fully threaded design and 82° countersink angle ensures flush mounting in various plastic materials, from thermoplastics to composite assemblies, making these self-tapping screws ideal for electronics enclosures, automotive trim, and consumer products where appearance and reliability are paramount.

Specification Summary & Compliance

This precision No. 6 x 1/2" tapping screw features a 0.138" thread diameter with 19 threads per inch and right-hand threading for standard installation. Manufactured to exacting dimensional standards with Class 2A thread tolerances, the screw ensures consistent performance across production runs. The product fully complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, meeting the latest requirements for hazardous substance restrictions. Designed for use with 1/8" drill bits (0.125" diameter) in plastic materials, this thread forming fastener delivers reliable performance while adhering to international environmental and manufacturing standards.