Question #12458

What does Sq 60 x 9 IS 4694-1968 means?

A.
Square Thread 60 mm dia, 9 mm pitch
B.
Buttress thread 60 mm dia x 9 mm pitch
C.
Acme thread 60 mm dia x 9 mm pitch
D.
Worm thread 60 mm dia x 9 mm pitch
Explanation

No explanation provided.