Description The Fence Fastening System by Cat's Claw Fasteners will be your new fencing go to. This revolutionary fencing system uses a rust-proof, toothed claw and a 2 inch #10 hex screw to attach wire to wooden fence posts. Unlike the old style of fencing staples, Cat's Claw Fasteners will not rust or loosen so your fence lines will prevail longer. This system also makes it easy to reuse staples and adjust fence tension.PRODUCT DETAILS: 14 gauge steel claw Toothed claw never slides 170 fasteners per tub #10 long self-starting screw Hex head screw is a #10, 2? self-starting screw Hex head is included with each box