12-14 x 4" Drilit® Heavy Duty Self Drilling Screws with Bonded Sealing Washers - #3 PointEconomical fasteners for applications requiring a weather tight seal This economical line of drill screws provides a weather tight seal for protection against the elements. Specifications Description 12 14 x 4" Diameter #12 Length 4in Point Type #3 Drilit Material Carbon Steel Finish Stalgard Coating Head Style Hex Washer Head Size #12 Diameter, 5 16" Hex Washer Head Screw Type Drilit Self drill Screws with Bonded Sealing Washers Drive System 5 16 in