· The gauge classifications for screw limit gauge are determined with the same grades as the screws to be measured. · This gauge is called a limit thread gauge since it uses the upper limit and lower limit of the predetermined dimension accuracy of the screw part using 2 screws with different dimensions, through and blind, for inspection. · For the usage method, a gauge is considered to have passed the grade inspection when the screw thread limit gauge's go gauge can pass through without difficulty and the no-go gauge cannot be screwed in by more than two rotations. · In addition to mass-producing limit screw gauges according to JIS standards, the manufacturer can also design and manufacture screw gauges to conform with any standard.
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