Aerospace - Nuts, Hexagonal, Plain, Reduced Height, Normal Across Flats, with MJ Threads, Classifications: 450 MPa (at Ambient Temp.)/120 Deg. C, 450 MPa (at Ambient Temp.)/235 Deg. C, 600 MPa (at Ambient Temp.)/425 Deg. C, 900 MPa (at Ambient Temp.)/235 Deg. C, 900 MPa (at Ambient Temp.)/315 Deg. C, 900 MPa (at Ambient Temp.)/650 Deg. C, 1 100 MPa (at Ambient Temp.)/235 Deg. C, 1 100 MPa (at - Ambient Temp.)/730 Deg. C and 1250 MPa (at Ambient Temp.)/600 Deg. C - Dimensions First Edition