Dimensions are in millimeters unless otherwise indicated.
Dimension B is minimum length of perfect thread. The length of useful thread (B plus threads with fully formed roots and flat crests) shall not be less than J.
Dimensions - NPS 1/2 to 4 - Class 2000
Dimensions - NPS 1/2 to 4 - Class 3000
Dimensions - NPS 1/2 to 4 - Class 6000
General notes:
Dimensions are in millimeters unless otherwise indicated.
Dimension B is minimum length of perfect thread. The length of useful thread (B plus threads with fully formed roots and flat crests) shall not be less than J.