Tack nails are small, sharp-pointed fasteners with a flat or slightly rounded head, designed for light-duty applications. They are commonly used in upholstery, carpeting, shoemaking, and crafts to securely hold materials in place without splitting them. Their short length and wide head provide a firm grip, making them ideal for fastening fabric, leather, or thin wood surfaces. Easy to install, tack nails offer a neat and reliable solution for detailed or delicate work.