Hillman 18-Gauge Narrow Crown Galvanized Staple for finish and trim work. These staples fit all 1/4" crown Senco staplers. The convenient 1000-count pack allows you to always keep your stapler loaded. Galvanized for added strength. 1,000 Count Size: 3/4" x 1/4" Gauge: 18 Gauge Finish: Galvanized Narrow crown Fits all 1/4" crown Senco staplers Used for finish and trim work.