S-90434A194 Length 5/8" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with Black Oxide Steel construction, extending service life in demanding industrial environments
• Exceptional holding power in plastic materials thanks to the Tri-Lobe shank design that creates secure, vibration-resistant connections
• Optimized driving efficiency with Phillips No. 2 drive style for reduced cam-out and consistent installation torque
• Reliable thread forming action that displaces material without cutting, creating stronger threads in plastic substrates
• Precision flat head design with 82° countersink angle for flush mounting and clean aesthetic finishes
• Full environmental compliance meeting RoHS 3 and REACH standards for sustainable manufacturing practices
• Versatile 5/8" length with full threading provides maximum engagement depth for secure plastic assemblies

Professional Applications & Engineering Value

Engineered specifically for plastic assembly applications, these TRS thread forming screws solve critical challenges in modern manufacturing. The Black Oxide Steel construction provides essential corrosion protection while the Tri-Lobe shank cross-section generates compressive forces that create permanent, high-strength threads in plastic materials without creating chips or debris. This thread forming method eliminates the risk of loose particles contaminating sensitive assemblies while providing superior resistance to vibration loosening. The Phillips No. 2 drive ensures consistent torque transmission during installation, reducing operator fatigue in high-volume production environments. Ideal for automotive trim, electronic enclosures, and consumer products where reliable plastic fastening is critical to product integrity and longevity.

Specification Summary & Compliance

This No. 8 x 5/8" TRS thread forming screw features precise 0.164" thread diameter with 16 TPI right-hand threading and standard flat head profile. Manufactured to inch system specifications with Class 2A thread tolerances for consistent performance. The screw is designed for use with No. 23 drill bit (0.154" diameter) and features 82° countersink angle for proper seating. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring adherence to international safety and sustainability standards for industrial fasteners.