The DOT Die #1412 is a precision tool designed for setting the DOT Durable BS-10370 medium-size stud, crafted from nickel-plated or black brass. This die enables snap fastener installation with strong holding power and self-piercing capability, making it ideal for use with upholstery fabric and marine canvas. Its heavy-duty construction ensures durability and a secure grip, fitting a flange diameter of approximately 14 mm (0.554 inches). Common applications include boat covers, tents, umbrellas, awnings, outdoor upholstery, gear bags, luggage, tarps, and privacy curtains. Meeting military and commercial specifications, this American-made die supports reliable snap installation for various industrial and marine projects.