FIELD: mechanical engineering. SUBSTANCE: self-locking nut has body with supporting and deformable plates coupled by jumper. Coaxial holes for fastening member are made in plates. Supporting plate is provided with auxiliary holes for fastening members designed to secure nut to part being coupled. Deformable plate is positioned at angle of 2-5 deg to supporting plate. Coaxial holes are provided with thread. Deformable plate hole may have beading. EFFECT: improved strength. 2 cl, 6 dwg
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