Forget crossthreading or lost time trying to find the correct nut or bolt. Quickly identify the following thread sizes and pitches: USS thread from 5 to 3/4in. and pitch of 10 to 44 TPL; Metric thread from 2.3 to 22 mm, and pitch of.45 to 2.5 mm; Pipe thread from 1/16 to 1/2in. and pitch of 14 to 27 TPL; Spark plug threads from 10 to 18 mm. Includes cross-ref charts for nominal, pitch, hole, and drill sizes.