Aerospace series – Anchor nuts with MJ thread, deep counterbore, self-locking, two lug, reduced, corrosion-resisting steel, classification: 1 100 MPa/315 øC/425 øC; Text in German and English
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 12/01/2015

Aerospace series – Anchor nuts with MJ thread, deep counterbore, self-locking, two lug, reduced, corrosion-resisting steel, classification: 1100 MPa/315 °C/425 °C
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 10/01/2005