Imperial 69174 Hex Head Self-drilling Tek Screw, 14x1-1/2", Pkg/100 Size:&nbsp;14X1-1/2" Hex washer head self-srilling tek screw Tek screws quickly drill, tap and insert, usually in less time than it takes to drill a hole Zinc plated for corrosion resistance Chuck Size: 3/8", Catalog ID: 42644140