People often use bimetallic thermometer can know that the teeth of the installation of the bimetallic thermometer have very big effect, but some people have no notion of screw tooth, if the teeth type wrong words, so it is also a problem for the installation, the use of bimetallic thermometer is to have a big impact! The size and model of the teeth is very learned, for example, the teeth of metric and imperial and metric thread ( Metric thread) , a thread parameters such as diameter, pitch is metric size unit, such as, mm, tooth type Angle of 60 & deg; ; Inch thread, thread parameter is the inch size units, such as, inch, every inch of teeth number, teeth Angle more than 55 & deg; 。 Today the instrument will tell you the bimetallic thermometer when installation the meaning of different screw tooth:
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