Heavy-duty size-7 snaps designed for thick layers and high-stress points. The 15 mm diameter spreads load widely, helping closures stay aligned on coats, costumes, and sturdy bags. Nickel finish coordinates with common metal trims and provides a durable surface for repeated opening and closing. Four sets per card are ideal for key placements such as jacket plackets, strap tabs, and pocket flaps where reliable, low-profile hardware is preferred over bulky buttons or buckles.