4-40 x 1/2 Phillips Fillister Head Machine Screw Fully Threaded Zinc NWSB it features a coarse thread

it features a coarse thread pitch of 11 threads per inch and a grade 8 rating

Suitable for a wide range of applications

The 1/4-20 thread size indicates that the nut is designed to be used with bolts or screws that have a diameter of 1/4 inch and a thread pitch of 20 threads per inch

making it an ideal choice for applications such as piping

The non-serrated design makes it less likely to damage the surface it is being used on

4-40 x 1/2 Phillips Fillister Head Machine Screw Fully Threaded Zinc NWSB it features a coarse threadThese 4 40 x 1 2 Phillips fillister head machine screws are fully threaded and made of zinc plated steel. They have a #2 Phillips drive and a fillister head with a 1 4 inch diameter. These screws are commonly used in a variety of applications, including electronics, appliances, and furniture. They are also suitable for use in outdoor applications, as the zinc plating provides protection against corrosion.