Aerospace. Nuts, hexagonal, slotted (castellated), reduced height, normal across flats, with MJ threads, classifications: 450 MPa (at ambient temperature)/120$0DC, 450 MPa (at ambient temperature)/235$0DC, 600 MPa (at ambient temperature)/425$0DC, 900 MPa (at ambient temperature)/235$0DC, 900 MPa (at ambient temperature)/315$0DC, 900 MPa (at ambient temperature)/650$0DC, 1100 MPa (at ambient temperatu
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