Hillman No. 10-16 x 3/4 in. L Hex Washer Head Self-Drilling Screws are ideal for a variety of applications, including attaching metal fixtures and fastening metal to wood. The hex washer head provides a large contact area for improved torque-to-turn resistance, while the self-drilling tip eliminates the need for a pilot hole. With steel material, you can use these screws for any home improvement to make the job done faster.