PG

 METRIC ELECTRICAL THREADS

SIZE TPI MAJOR (EXT) MINOR (INT) TAP DRILL
PG 7 20 12.50 11.28 11.40
PG 9 18 15.20 13.86 14.00
PG 11 18 18.60 17.26 17.25
PG 13.5 18 20.40 19.06 19.00
PG 16 18 22.50 21.16 21.25
PG 21 16 28.30 26.78 26.75
PG 29 16 37.00 35.48 35.50
PG 36 16 47.00 45.48 45.50
PG 42 16 54.00 52.48 52.50
PG 48 16 59.30 57.78 57.75