Black Ruspert Hex Washer Head Self Drilling Screwsbuy on amazon
1", 1/2", 3/4"
Self drilling screws have an integrated drill point that allows for a quick transition from drilling to tapping and eliminates the need for a pilot hole. These have a hex head with a built-in washer and are typically used in metal, wood, or fiberglass. They are made of hardened carbon steel with a black ruspert coating rated for outdoor applications. They are magnetic and can be used with a magnetic driver for one handed installation.