Stainless #14 x 1" Hex Washer Head Self Drilling Sheet Metal Tek Screws With Drill Point, (3/4" To 2-1/2" Lengths in Listing) 50 pieces (#14 x 1 inch) Use 3/8 Inch Hex Driver for #14 Screws Tensile - 180,000 psi, Hardness - 40 Rockwell C Type BSD is a tapping screw with spaced threads and a drill point which drills its own hole #3 Drill Point