12-24 x 1-1/4" Drilltite® Heavy Duty Self Drilling Screws with Bonded Sealing Washers - #5 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 24 x 1 1 4" Diameter #12 Length 1 1 4in Point Type #5 Drilltite 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