S-90380A198 Length 3/4" Tapping Screws

Key Features & Benefits at a Glance

• Superior holding power in plastic materials through advanced thread forming technology that creates strong, permanent threads without chipping or cracking
• Excellent corrosion resistance provided by zinc-plated steel construction, ensuring long-term reliability in various industrial environments
• Reduced installation torque and cam-out with the Phillips No. 2 drive system, allowing for efficient assembly while minimizing tool slippage
• Enhanced material displacement control thanks to the tri-lobe shank design that provides superior thread engagement and prevents screw back-out
• Complete thread coverage with fully threaded 3/4" length and 16 TPI configuration for maximum grip strength throughout the entire fastener
• Simplified installation process using standard No. 23 drill bit (0.154" diameter) for precise hole preparation and optimal performance
• Environmental compliance assurance meeting RoHS 3 and REACH regulations for safe use in global industrial applications

Professional Applications & Engineering Value

These No. 8 zinc-plated steel TRS tapping screws are specifically engineered for plastic fastening applications where traditional threaded fasteners often fail. The thread forming technology creates strong, permanent threads in plastic materials without generating chips or stress fractures that can compromise structural integrity. The tri-lobe shank cross-section provides superior material displacement control, ensuring tight thread engagement that resists vibration-induced loosening. With their Phillips drive system and blunt tip design, these screws offer straightforward installation in plastic components across automotive, electronics, construction, and consumer goods manufacturing. The combination of zinc-plated corrosion protection and full threading delivers reliable performance in demanding environments where plastic-to-metal or plastic-to-plastic assemblies require durable, long-lasting fastening solutions.

Specification Summary & Compliance

These thread forming tapping screws feature precise dimensional specifications including No. 8 size (0.164" thread diameter), 3/4" length, 16 TPI thread pitch, and standard pan head profile with 0.322" head diameter. Manufactured as TRS (Thread Rolling Screws) with tri-lobe shank design for optimal performance in plastic materials. The screws comply with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring they meet international standards for restricted substances. Recommended for use with No. 23 drill bit (0.154" diameter) for proper hole preparation in plastic applications.