hardware screws
vermont american 21939 screw pitch gaugeu.s . thread counts
screw pitch gauge u.s. thread counts steel measures screw pitches on v threads range u.s. thread counts 10 40 br b features b ul li item screw pitch gage li li material steel li li number of leaves 14 li li type u.s. thread counts li li measures screw pitches on v threads li li range u.s. thread counts 10 40 li ul
vermont american