I ordered the 24" X 2.5" Wood screw and nut with the brass garter and handle. I have the legs milled and cut to length but it just dawned on me I don't know how far down to set the screw and drill the hole. Is there a guide line to go by for how far down to go? I would think its at a level that would be easy to reach and turn without bending but I am not sure. I am only going to instal a leg vice for now. The bench will be 7' long and 34.5" high with mortise & tenon for the top to sit on/in and will not be fastened to the bench for now, the top is 3.5" thick and I may have a center board that can be turned around for a planing stop.