Tack

Tacks are small, sharp-pointed nails that are typically used for securing fabric, upholstery, or other lightweight materials to a surface. They are commonly used in crafts, upholstery work, and for hanging lightweight items on walls or bulletin boards.

In the supply class Nails, Machine Keys, and Pins, tacks fall under the category of nails. Nails are fasteners with a pointed end and a flat head, designed to be driven into materials such as wood or metal to join or secure them together.

The supply group Hardware and Abrasives encompasses a wide range of products used in construction, maintenance, and repair tasks. It includes items such as screws, bolts, nuts, washers, hinges, hooks, and various types of fasteners. Abrasives, on the other hand, refer to materials used for grinding, sanding, or polishing surfaces, such as sandpaper, grinding wheels, or abrasive discs.

So, tacks are a specific type of nail that falls under the supply class Nails, Machine Keys, and Pins, which is part of the larger supply group Hardware and Abrasives.