Upgrade your outdoor projects with the DOT Self-Piercing Grommet with Grip Tooth Washer #3, a heavy-duty brass solution for reliable hole reinforcement. The self-piercing design eliminates the need for pre-punching holes, making installation quick and easy. Each set includes a grip tooth washer for a secure, tight grip that holds strong over time, especially on woven materials. These brass grommets resist rust and corrosion, making them suitable for both indoor and outdoor use. The 7/16 inch size is ideal for fabric fastening, banners, and textile applications, and the pack contains 500 sets for larger jobs. Compatible with a range of pressing tools and dies, these industrial fasteners meet commercial specifications and deliver durable, long-lasting performance.