PREN 2922-1992 Aerospace Series Nuts@ Hexagon@ Plain@ Reduced Height@ Reduced Across Flats@ in Heat Resisting Steel@ Passivated@ Left Hand Thread Classification : 600 MPa (at Ambient Temperature) / 650 Degrees C (Edition P 1)
2010PREN 2922-2010 Aerospace series Nuts@ hexagon@ plain@ reduced height@ reduced across flats@ in heat resisting steel@ passivated@ left hand thread Classification : 600 MPa (at ambient temperature)/ 650° C (Edition P3)
1996PREN 2922-1996 Aerospace Series Nuts@ Hexagon@ Plain@ Reduced Height@ Reduced Across Flats@ in Heat Resisting Steel@ Passivated@ Left Hand Thread Classification : 600 MPa (at Ambient Temperature) / 650 Degrees C (Edition P 2)
1992PREN 2922-1992 Aerospace Series Nuts@ Hexagon@ Plain@ Reduced Height@ Reduced Across Flats@ in Heat Resisting Steel@ Passivated@ Left Hand Thread Classification : 600 MPa (at Ambient Temperature) / 650 Degrees C (Edition P 1)