Knuckle threads for the mining; threads with large load-bearing depth.
STANDARD published on 1.1.1990
Designation standards: DIN 20400:1990-01
Note: WITHDRAWN
Publication date standards: 1.1.1990
The number of pages: 6
Approximate weight : 18 g (0.04 lbs)
Country: German technical standard
Category: Technical standards DIN
Rundgewinde für den Bergbau; Gewinde mit großer Tragtiefe.