Staples are small metal fasteners that are typically U-shaped or have two legs that penetrate the material being fastened. Meanwhile, 21 gauge staples are common type.
Fine wire staples, as the name suggests, are staples with thinner wire gauges compared to standard staples. They are designed for more delicate and lightweight applications where a lower-profile fastener is desired. Fine wire staples are commonly used in upholstery, crafts, woodworking, and other applications. Certainly, common size of it is 20 gauge fine wire staples.