4-40 x 1/4 Phillips Flat Undercut Thread Cutting Screw Type 1 Fully Threaded Zinc M3.5 The Grade 5 rating indicates

The Grade 5 rating indicates its ability to withstand high levels of torque and stress

Ideal for use in marine environments

which means that it does not have any teeth on its surface

It is 1 3/4 inches long and has a diameter of 1/2 inch

With its 8-inch length and 3/4-10 thread size

4-40 x 1/4 Phillips Flat Undercut Thread Cutting Screw Type 1 Fully Threaded Zinc M3.5 The Grade 5 rating indicatesThe 4 40 x 1 4 Phillips Flat Undercut Thread Cutting Screw Type 1 Fully Threaded Zinc is a small, versatile screw that is commonly used in a variety of applications. It is made of zinc plated steel, which provides excellent corrosion resistance. The screw has a Phillips drive, which makes it easy to install and remove. The flat undercut head sits flush with the surface of the material, making it ideal for applications where a low profile is desired.