10-24 x 5/8 Phillips Flat Undercut Thread Cutting Screw Type F Fully Threaded Zinc MDWEA2 and have a zinc yellow

and have a zinc yellow and bake finish

which means they can be driven directly into metal without the need for a pilot hole

and a zinc coating that resists rust and corrosion

These 6-18 x 1/2 Phillips Full Contour Truss Self Tapping Screw Type A Fully Threaded Black Oxide screws are designed for use in a variety of applications

This screw is designed for use in metal applications and has a square pan head with a self-tapping thread

10-24 x 5/8 Phillips Flat Undercut Thread Cutting Screw Type F Fully Threaded Zinc MDWEA2 and have a zinc yellow10 24 x 5 8 Phillips Flat Undercut Thread Cutting Screw Type F Fully Threaded Zinc: Screw type: Type F Thread: Thread cutting Drive: Phillips Head style: Flat undercut Size: 10 24 x 5 8 inches Material: Zinc plated steel Fully threaded Designed to create its own threads in wood or plastic materials Commonly used in construction, furniture assembly, and other applications where a strong and secure hold is required