Aerospace - Nuts, Anchor, Self-Locking, Fixed, Two Lug, Reduced Series, with Counterbore, with MJ Threads, Classifications: 1 100 MPa (at Ambient Temperature)/235 Degrees Celsius, 1 100 MPa (at Ambient Temperature)/315 Degrees Celsius and 1 100 MPa (at Ambient Temperature)/425 Degrees Celsius - Dimensions