Operation Manual

614 Tables and overviews
9.1 Thread pitch
Q = 19 NPFS U.S. cylindrical pipe thread without lubricant
Thread
designation
Diameter
(in mm)
Thread pitch
Thread
designation
Diameter
(in mm)
Thread pitch
1/16'' 7.938 0.94074074 1/2'' 21.336 1.814285714
1/8'' 10.287 0.94074074 3/4'' 26.67 1.814285714
1/4'' 13.716 1.411111111 1'' 33.401 2.208695652
3/8'' 17.145 1.411111111