The DOT Durable Gypsy Stud 93-XB-10342-1A Nickel-Plated Brass 100 pack is a heavy-duty snap fastener designed for joining multiple layers or covers with a firm, secure grip. Made from nickel-plated brass, this stud fastener offers superior snap action and holding strength, making it ideal for marine canvas hardware, upholstery, awnings, tents, boat covers, gear bags, and outdoor upholstery. Known as a double stud, it allows for stacking or double layering material, providing a corrosion-resistant solution suited for tough or outdoor environments. Each pack contains 100 units, delivering reliable performance for demanding applications.