8-18 x 1/2 Slot Indent Hex Washer Serrated Self Tap Screw Type AB Full Thread Zinc MPW and the undercut head helps

and the undercut head helps to prevent the screw from stripping

These 8-18 x 1/2" unslotted indented hex washer full thread self-drill screws are made of durable 410 stainless steel

These 12-11 x 3 Slotted Indented Hex Washer Self Tapping Screws Type A Fully Threaded Zinc are designed for use in a variety of applications

making it ideal for outdoor projects

8-18 x 1/2 Slot Indent Hex Washer Serrated Self Tap Screw Type AB Full Thread Zinc MPW and the undercut head helpsThese 8 18 x 1 2" Slot Indent Hex Washer Serrated Self Tap Screws Type AB are full thread and zinc plated. They have a slotted drive and a hex washer head. The serrations on the screw help to prevent it from backing out. These screws are ideal for use in metal, plastic, and wood applications.