S-92400A240 Length 5/8" Tapping Screws

Key Features & Benefits at a Glance

• Superior holding power in plastic materials thanks to the tri-lobe shank design that creates strong, vibration-resistant threads without generating chips
• Excellent corrosion resistance provided by zinc-plated steel construction, ensuring long-term durability in various industrial environments
• Maximum torque transfer and easy installation with the external hex head design that prevents cam-out and allows for high tightening forces
• Reliable thread formation through the thread forming (TRS) design that displaces material rather than cutting it, resulting in stronger thread engagement
• Full-length threading capability with 16 threads per inch providing consistent fastening strength along the entire 5/8" length
• Environmental compliance assurance meeting RoHS 3 and REACH standards for safe use in regulated applications
• Optimized for plastic assemblies with blunt tip design that prevents material splitting while maintaining precise No. 29 drill bit compatibility

Professional Applications & Engineering Value

This No. 8 TRS thread forming screw delivers exceptional engineering value for plastic assembly applications where traditional fasteners fail. The zinc-plated steel construction provides necessary corrosion protection while maintaining high tensile strength. The innovative tri-lobe shank cross-section creates permanent, high-retention threads in plastic materials by displacing material radially, eliminating the weak points associated with cut threads. This design prevents loosening from vibration and thermal cycling - common challenges in automotive, electronics, and appliance manufacturing. The external hex drive style ensures maximum torque transmission without stripping, while the fully threaded design with 16 TPI right-hand threading offers uniform stress distribution. These thread forming screws for plastic eliminate the need for inserts and provide reliable performance in challenging polymer applications.

Specification Summary & Compliance

This thread forming tapping screw features precise inch system dimensions: No. 8 thread diameter (0.164"), 5/8" length, 1/4" hex head width, and 0.141" head height. The TRS (Thread Rolling Screw) type with tri-lobe shank conforms to standard thread forming specifications. Manufacturing compliance includes adherence to RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. The screw is designed for use with No. 29 drill bit (0.136" diameter) and features right-hand thread direction with blunt tip for optimal performance in plastic materials.