NBN 402-1957
ISO triangular thread, shape of thread, compiled by a group of Belgian mechanics experts

Standard No.

NBN 402-1957

Release Date

1957

Published By

BE-NBN

Latest

NBN 402-1957

NBN 402-1957 history

• 1957 NBN 402-1957 ISO triangular thread, shape of thread, compiled by a group of Belgian mechanics experts