4-40 x 1/2 Phillips Flat Undercut Machine Screw Fully Threaded Black Oxide NHY The thin height makes it

The thin height makes it ideal for use in tight spaces

while the nut is welded to the other surface

This 1/2-13 x 3 1/2 Grade 5 Plow Bolt features a #3 head and is zinc-plated for corrosion resistance

The yellow zinc finish provides excellent corrosion resistance

The split lock washer has a unique design that creates a spring-like action

4-40 x 1/2 Phillips Flat Undercut Machine Screw Fully Threaded Black Oxide NHY The thin height makes itThe 4 40 x 1 2 Phillips Flat Undercut Machine Screw Fully Threaded Black Oxide is a small, versatile screw that is commonly used in a variety of applications. It is made of steel and has a black oxide finish, which provides corrosion resistance. The screw has a Phillips head, which allows for easy driving and removal. The flat undercut head sits flush with the surface of the material, making it ideal for applications where a low profile is desired.