The self-tapping and sharp-point screws are installed without predrilling holes in the receiving material. Fasteners are installed with an eye-lag jig pole, 1/4-inch (6.4 mm) hex driver, and a variable speed drill having a minimum speed of 200 rpm. The H-5 (750SDXW) is a self-drilling eye-lag screw. It features a bright zinc finish and is designed to be used when going driectly into sheet metal over 1/8". Drill point to collar is 7/8", overall length is about 2". 1,000 pieces/bx. (750SDXW)