Pitch P=
mm  
  ISO standard thread d=    
           
  EXTERNAL THREAD (CASE 1)  
    A1max= mm 1)
    A2= mm 2)
EXTERNAL THREAD (CASE 2 )
   
    B1max= mm 1)
    B2= mm 2)
    B3= mm 3)
INTERNAL THREAD (CASE 3)
   
    C1= mm 1)
    C2= mm 2)
    C3= mm 3)