Wherever there is milkweed there will be Monarch butterflies. The monarch is widely distributed across North America, from Central America northwards to southern Canada, and from the Atlantic to the Pacific coasts.
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 the thread.
Save. Bolts commonly use four types of measurement, while nuts use only two. Bolts are measured in length of shank, bolt head size, width of shank (the diameter of the threaded bolt body) and the thread pitch (the size of the thread).Nuts are measured by the width of the hex shape and by their thread pitch.ince the difference between metric and standard length bolts is very slight, most often, this measurement is done in inches. Place the shank of the bolt into the bolt width gauge. This measurement is the diameter of the shank and can be in either metric or standard sizing. Use each to determine the difference.