
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