UNI 6421-1969
Hexagon screws for manufacture of railway and tramway rolling stock. ISO metric coarse thread. Finish a.

Standard No.

UNI 6421-1969

Release Date

1969

Published By

IT-UNI

Latest

UNI 6421-1969

Scope

Example and table with designation. Material: steel for classes 4s, 5s, 8g, according to UNI 3740-65, or other material that must be indicated in the designation instead of the class.

UNI 6421-1969 history

• 1969 UNI 6421-1969 Hexagon screws for manufacture of railway and tramway rolling stock. ISO metric coarse thread. Finish a.