DIN 65251
DIN 65251 Aerospace series - Bolts, with MJ threads, in titanium alloys, strength class 900 MPa and 1 100 MPa - Technical specification
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 05/01/2013
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 05/01/2013