Description
Identifies bolts, fittings, pipe threads and spark plugs with US or metric threads.
Aluminum gauges identify:
1) US threads from #5 to 3/4″ and pitch of 10TPI to 44TPI;
2) Metric threads from 2.5 to 22mm and pitch of .45 to 2.5mm;
3) Pipe threads 1/16″ to 1/2″ with 14TPI to 27TPI; and
4) Spark plug threads 10 to 18mm.