If you love hanging pictures, paintings, or other items in your house or office, hook screws might be familiar to you. Hook screws are a small hook with a pointed, threaded shank for screwing into woodwork or paneling, and a curved hooked end. To install hook screws, find a ceiling joist where you want to hang your hook. Use a pencil to mark your desired location for the hook screw in the joist. Drill a pilot hole to the ceiling joist. When choosing a drill bit, go for a slightly smaller one than the hook screw. Drill slightly deeper than the length of the threaded shaft of the hook screw. Remember to drill the hole not too widely or shallowly. If the hole is too wide, the hook screw won’t have anything to hold on to, making it loose. If it is too shallow, it would be hard to screw the hook screw all the way in.