18-8 Stainless Steel Thread Rolling Screws – 4-20 X 3/8", 82° Flat Head, Phillips Drive, Passivated Finish (50-Pack)

About This Product

These thread rolling screws are made specifically for use in plastic materials.
Unlike thread-cutting screws that remove material and create chips, these thread rolling (or thread forming) screws displace the plastic to form threads.

That means no messy chips to clean up, and you get a tighter, stronger fit because the plastic flows around the threads.

They're made from 18-8 stainless steel, which offers good corrosion resistance and strength – perfect for outdoor or humid environments.

The passivated finish boosts that corrosion resistance even more.
The flat head has an 82-degree countersunk angle, so it sits flush with the surface – great for a clean, professional look.

The Phillips drive is designed to let the driver slip out at a certain torque to prevent over-tightening, which helps avoid stripping the plastic threads.

Each screw is 4-20 thread size and 3/8 inch long.

You get 50 in the pack – plenty for multiple projects.
Use them for electronics enclosures, plastic housings, automotive interior parts, or any plastic assembly.
Reliable, clean, and effective – a solid choice for plastic fastening.