This is the screw that attaches the forForearm cap (which holds your wooden forForearm/ foregrip onto the rifle) to the forForearm cap tenon. There are two un-threaded holes on either side of the cap se screws to go through. They thread into the tenon that attaches to the underside of the barrel. They are also called forearm tip tenon screws. These screws fit the model 1894, 1982, 1866, 1873,1876, 1886 model 64, model 55 and 53 Winchester lever action rifles.NOTE: Overall length of this screw is 0.265, If you are in need of a longer version of this screw please see part number (wp54-b) 0.330