4-24 x 3/8 Phillips Pan Self Tapping Screw Type AB Fully Threaded Zinc #4 They are made of black

They are made of black phosphate particle board

and a zinc coating that offers excellent corrosion resistance

With its standard 1/4-28 thread size

and the 10-24 thread size ensures a secure fit

The square drive head provides a secure grip for driving

4-24 x 3/8 Phillips Pan Self Tapping Screw Type AB Fully Threaded Zinc #4 They are made of blackThese 4 24 x 3 8 Phillips Pan Self Tapping Screw Type AB Fully Threaded Zinc screws are designed for use in a variety of applications. They are made of steel and have a zinc plating for corrosion resistance. The screws have a pan head with a Phillips drive and are fully threaded. They are self tapping, which means they can create their own threads in the material they are being driven into. These screws are ideal for use in metal, plastic, and wood.