BS EN 2909:1995 Nuts, bihexagonal, self-locking, deep counterbored, in heat resisting steel FE-PA92HT (A 286), silver plated. Classification: 1100 MPa (at ambient temperature)/650°C
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This standard specifies the characteristics of self-locking bihexagonal nuts with deep counterbore, in FE-PA92HT, silver plated, for aerospace applications.
Classification : 1 100 MPa ¹) / 650 °C 21