The Lift-the-DOT Washer 90-BS-16501-1C Government Black Brass 100 pack is a heavy-duty snap fastener designed for reliable performance in demanding outdoor environments. Made from corrosion-resistant brass with a black finish, this washer meets government specifications and locks securely on three sides, opening only when the fourth side is lifted. Each pack contains 100 washers, ideal for marine hardware, military gear, automotive applications, tents, awnings, holsters, and gear bags. Compatible with standard setting tools, these canvas washers offer a durable solution for canvas and fabric projects where strength and longevity matter.