The Lift-the-DOT Washer 90-BS-16509-2A is a heavy-duty, nickel-plated brass locking washer designed for secure cloth-to-cloth fastening. It features a unique one-way lift mechanism that locks on three sides and releases when lifted from the fourth side, making it ideal for marine canvas, boat covers, awnings, tents, and upholstery hardware. This rust-resistant washer reinforces fastener points in outdoor fabric applications, offering reliable durability in marine and outdoor settings without sacrificing easy, quick release functionality. Compatible with the Lift-the-DOT fastener system and special setting tools, it provides a durable solution for marine fasteners, canvas fasteners, and other fabric-to-fabric connections. The pack contains 1000 washers, suited for upscaling outdoor living with secure, long-lasting fastening hardware.