hardware screws
starrett 472 screw pitch gage4 84tpi51 leaves
screw pitch gage v unified american national number of leaves 51 range of pitches per inch 4 to 84 tpi thread angle 60 deg leaves narrow design with flattened teeth locking device thumb screw construction steel case with folding leaves br b features b ul li item screw pitch gage li li number of leaves 51 li li range of pitches per millimeter li li type v unified american national li li construction steel case with folding leaves li li range of pitches per inch 4 to 84 tpi li li locking device thumb screw li li leaves narrow design with flattened teeth li li thread angle deg . 60 li ul
starrett