0.80 Inch

0.81 Inch

0.83 Inch

0.84 Inch

0.08

0.082

0.084

0.09

Core dia = Measurement over prisms ? Height of prisms ? Single depth of thread

Core dia = Measurement over prisms ? Height of prisms + Two depth

Core dia = Measurement over prisms + Height of prisms ? Single depth

Core dia = Measurement over prisms ? Height of prisms + Single depth

30/120

50/120

40/120

40/150

4 times

5 times

6 times

3 times