M27 * 2 is said what mean?

Bimetallic thermometer has a very wide range of applications, the market demand is big, but due to adapt to more occasions and corresponding specifications also many, many clients for the parameters of the thermometer is not very understanding, will ask M27 * 2 bimetallic thermometer when inquiry price, actually is a kind of bimetallic thermometer thread specification. The following instruments to explain it for you! Thread specification M27 * 2: M is the common thread tooth type code, 27, said nominal diameter for 27 mm, said pitch of 2 mm. M27 * 2 bimetallic thermometer is a round shape into threaded heat bimetallic strip as thermal devices, and put it in a protective sleeve tube, one end is fixed, known as the fixed end, the other end of the connection on a thin shaft, called the free end. Spool at the free end is equipped with a pointer. When the temperature changes, the resulting thermal devices the free end of the rotation, drive the thin axis from the Angle of the pointer changes, corresponding temperature indicator on the dial.