Accuracy of external threads and accuracy of Dies

■ Example : M6X1

Accuracy of external threads Accuracy of Die

Basic Pitch Diameter 5.350mm Basic Pitch Diameter 5.350mm

0

4h4h

6g6g -100 -100 6g6g 8g8g

-200 -200

( m) ( m)

Class of Die shows pitch diameter tolerance of Testpiece External Threads cut by the die.

Class of die Application

6g for Class 6g