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Source:weihao group co.,limited Popularity:0Release Time:2016-12-03 13:46:08

Metric thread in MM (millimeter) as the unit, its tooth Angle of 60 degrees. American thread and inch thread is for the unit in inches. Usmade thread tooth

Angle is 60 degrees, the inch thread tooth Angle of 55 degrees. Because of the different measurement unit, caused the representation method of thread is

endless also and same. Such as the M16-2 x60 said is metric thread. His specific meaning is the nominal diameter of the screw is 16 MM, teeth distance is 2 MM, length of 60 MM, such as: a

quarter - 20 x3/4 is to inch thread, the specific means the nominal diameter of the screw to 1/4 inch (1 inch = 25.4 MM), there are 20 teeth on one inch,

length is three-fourth inches (3/4 "). Said in addition to said american-made screws are generally in the back of the imperial screws and UNC, UNF,

to American is the difference between coarse thread or american-made fine teeth.

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