Stainless #12 x 1" Hex Washer Head Self Drilling Sheet Metal Tek Screws With Drill Point (1/2" to 2-1/2" lengths in Listing), 100 pieces (#12 X 1 INCH)
[Product Information]
Use 5/16 Inch Hex Driver for #12 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