Daggerz™ Self Drilling Screws are the flagship line of all of the Quality Construction Fasteners offered by International Fasteners, Inc. From a #1 Stitch Point up to a #5 Drill Point which can go thru 1/2" thick steel, your self drill needs are covered! When it comes to head styles, there are many to choose from: Bugle, Flat, Hex Flange, Hex Washer, Modified Truss, Oval, Pan, Pan Framing, Pancake, Thin Wafer, and Trim.