Confidence votes 340. A rise in the white blood cells may be due to a number of reasons, these are; Stress, Bacterial infections, Intense excercise, Leukemia, Inflammation and Trauma. 6 people found this useful.
The pitch diameter (often called the effective diameter) of a parallel thread is the diameter of the imaginary co-axial cylinder which intersects the surface of the thread in such a manner that the intercept on a generator of the cylinder, between the points where it meets the opposite flanks of a thread groove, is equal to half the nominal pitch of ...
Best Answer: National fine. This is a series of tap pitches. NC is National Course pitch. The pitch is the distance between the tops of the thread. (M) Just like the distance in the V of the M, the number signifies the number of threads per inch. Threads per Inch is referred to as T.P.I. and the 1/4 value is the Outside most diameter, so the hole to be tapped must therefore be smaller. If one is using a 1/4-28 tap the hole diameter drilled should be .211/.216 diameter.