DOT sheet metal grommets with plain washers in nickel-plated brass offer a durable and corrosion-resistant solution to reinforce 1/2 inch holes in fabrics and sheet materials. Size #4 and provided in a convenient 1 gross (144 pairs) pack, this washer set supports heavy-duty applications such as tarps, banners, awnings, signs, upholstery, and marine equipment. Designed for compatibility with setting tools or machines, these commercial specification grommets ensure a reinforced hole that adds strength and abrasion resistance while maintaining a clean nickel finish. Available in multiple sizes, this brass grommet and washer combination delivers reliable fabric hardware for enhanced outdoor and industrial use.