S-95893A381 Length 1 1/4" Tapping Screws

Key Features & Benefits at a Glance

• Superior holding power in plastic with TRS thread forming design that creates strong, permanent threads without chips
• Maximum torque transmission and strip resistance through T27 Torx drive system for secure installations
• Enhanced corrosion protection with zinc-plated steel construction for extended service life in industrial environments
• Vibration-resistant performance thanks to tri-lobe shank design that prevents loosening under dynamic loads
• Clean, flush installations with 82° countersink angle and flat head profile for smooth surface finishing
• Reliable thread engagement through fully threaded design ensuring consistent fastening along the entire length
• Simplified installation process with precise 0.234" drill bit size recommendation for optimal hole preparation

Professional Applications & Engineering Value

These 1/4"-10 zinc-plated steel T27 Torx TRS tapping screws are specifically engineered for demanding plastic fastening applications where reliability is critical. The thread forming technology eliminates chip formation during installation, preventing contamination in sensitive assemblies while creating strong, permanent threads in thermoplastic materials. The tri-lobe shank cross-section displaces plastic material during installation, creating compressive forces that resist vibration-induced loosening - a common failure point in plastic assemblies. The T27 Torx drive provides superior torque transmission compared to traditional drives, reducing cam-out incidents and ensuring consistent seating with the 82° countersink angle for flush mounting. These features make these screws ideal for automotive plastic components, electronic enclosures, and industrial equipment where vibration resistance and long-term reliability are essential.

Specification Summary & Compliance

These inch-system fasteners feature precision 1/4"-10 thread with right-hand direction and fully threaded 1 1/4" length. The TRS (Thread Rolling Screw) thread forming design with tri-lobe shank cross-section ensures reliable performance in plastic substrates. Manufactured to industry standards with RoHS 3 (2015/863/EU) compliance and REACH (EC 1907/2006) compliance, meeting environmental regulations for industrial applications worldwide. The standard flat head profile with blunt tip and specified 0.234" drill bit diameter ensures proper installation in plastic materials.