S-90380A267 Length 3/8" Tapping Screws

Key Features & Benefits at a Glance

• Superior holding power in plastic with tri-lobe shank design that displaces material to create permanent, vibration-resistant threads without pre-tapped holes.
• Corrosion-resistant zinc-plated steel construction ensures long-term durability and reliability in various industrial environments.
• Efficient, cam-out resistant installation provided by the Phillips No. 1 drive, reducing tool slippage and assembly time.
• Maximum grip and pull-out resistance achieved through fully threaded design, distributing clamping force evenly along the entire fastener length.
• Optimized for plastic assembly with a blunt tip and 24 TPI thread pitch to prevent material cracking and ensure clean thread formation.
• Precision fit with No. 43 drill bit (0.089" diameter) for accurate pilot holes, ensuring consistent performance and reduced installation stress.
• Compliance with global environmental standards including RoHS 3 and REACH, making them suitable for regulated industries and export requirements.

Professional Applications & Engineering Value

These zinc-plated steel TRS tapping screws are engineered specifically for plastic assembly applications, where traditional fasteners often strip threads or cause material stress cracks. The thread forming (TRS) design with a tri-lobe shank cross-section compresses plastic material rather than cutting it, creating stronger, more reliable threads that resist loosening under vibration. This makes them ideal for electronics enclosures, automotive trim components, and consumer product assemblies where plastic integrity is critical. The Phillips drive system provides sufficient torque transmission for production line efficiency while the fully threaded configuration ensures maximum engagement in various plastic thicknesses. These screws eliminate the need for threaded inserts in many applications, reducing both component costs and assembly complexity.

Specification Summary & Compliance

This No. 3 x 3/8" tapping screw features a 0.099" thread diameter with 24 threads per inch precision threading, Class 2A thread tolerances for consistent performance, and standard pan head profile for flush mounting. Manufactured to TRS (Thread Rolling Screw) specifications for plastic materials with recommended No. 43 drill bit (0.089" diameter) for pilot holes. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations for industrial use.