8-15 x 5/8 Phillips Full Contour Truss Self Tapping Screw Type A Fully Threaded Black Oxide KWTFMS They have a self-piercing needle

They have a self-piercing needle point that makes it easy to drive them into metal without pre-drilling

The blue Perma Seal coating offers exceptional corrosion resistance

It has a hex head for easy installation and removal with a wrench or socket

This 1/4-14 x 1 1/4" unslotted indented hex washer self-drilling screw is made of steel and has a black zinc finish

8-15 x 5/8 Phillips Full Contour Truss Self Tapping Screw Type A Fully Threaded Black Oxide KWTFMS They have a self-piercing needleThese 8 15 x 5 8 Phillips Full Contour Truss Self Tapping Screw Type A Fully Threaded Black Oxide are designed for use in a variety of applications, including metal to metal, metal to wood, and wood to wood. They are made of steel and have a black oxide finish for corrosion resistance. The screws have a full thread design that provides maximum holding power, and they are self tapping, which eliminates the need for pre drilling. The Phillips drive head