what is pitch in screw gauge

The pitch in a screw gauge refers to the distance moved by the spindle per revolution. It is an important parameter used in every screw gauge to measure the distance moved by the spindle when completing one full rotation. The pitch is calculated by dividing the distance moved by the screw by the number of rotations given. The pitch of a screw gauge is essential in determining the least count of the screw gauge, which is defined as the distance moved by the tip of the screw when turned through one division of the head scale. The least count can be calculated by dividing the pitch by the total number of divisions on the circular scale. In practical applications, a thread gauge, also known as a screw gauge or pitch gauge, is used to measure the pitch or lead of a screw thread. This tool is not used as a precision measuring instrument, but it allows the user to quickly categorize the thread by shape and pitch, saving time and effort in the measurement process.