Aerospace - Nuts, Spline-Drive, Self-Locking, with MJ Threads, Classifications: 1 100 MPa (at Ambient Temperature)/425 Degrees C, 1 100 MPa (at Ambient Temperature)/650 Degrees C, 1 210 MPa (at Ambient Temperature)/425 Degrees C, 1 210 MPa (at Ambient Temperature)/730 Degrees C, 1 550 MPa (at Ambient Temperature)/235 Degrees C, 1 550 MPa (at Ambient Temperature)/425 Degrees