19/64 x 24 unjf 3B
thread major 0.297
thread minor 0.246
thread height 0.026
thread pitch 0.04
Our main concern is that we are not sure how the 'P' value is worked out? We have read that it is the thread height as a radial value with no decimal...our thread height has been measured at 0.026, but surely we wouldnt use P026 ?