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BS A 344:1999
Nuts, anchor, self-locking, fixed, single lug, reduced series, with counterbore, with MJ threads, classifications: 1100 MPa (at ambient temperatures)/235 degreesC, 1100 MPa (at ambient temperature)/315 degreesC, 1100 MPa (at ambient temperature)/425 degreesC. Dimensions
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About This Item
This International Standard specifies the dimensions of self-locking, fixed, single lug anchor nuts, reduced series, with counterbore, with MJ threads, for classifications: 1100 MPa1)/235 °C2), 1100 MPa1)/315 °C2) and 1100 MPa1)/425 °C2).
This International Standard is only applicable for the compilation of aerospace product standards.
1) Corresponds to the minimum tensile stress which the nut is able to withstand at ambient temperature without breaking or cracking when tested with a bolt of a higher strength class.
2) Maximum temperature that the nut is able to withstand, without permanent alteration to its original characteristics, after ambient temperature has been restored. The maximum temperature is conditioned by the surface treatment.