10½ Gauge Barbed Fencing Staples for ST315iStockades ST315i fencing staples are engineered to be power driven by the ST315i stapler system. The narrow crown on the staple helps grip the fence wire and the divergent point design ensures the staple legs spread as they are driven into timber for improved holding power. The genuine Stockade paper collation provides superior collation strength and reduces tool contamination, with a moisture resistant adhesive formula for improved all weather