Patent ID: 9194421
Filing Date: 2015-11-24
Classification: F16B

Abstract:
1. The self-locking nut comprising: a rear nut body having internal threading for threading on a threaded shaft of a fastener bolt, and being integrally formed with a front nut body having circumferentially arranged, crush-locking lips provided on a forward contact face of the front nut body and being spaced from the internal threading of the rear nut body by an internal relief cut for accommodating deformation of the crush-locking lips therein, wherein when the self-locking nut is tightened down on an object on which the fastener bolt is to be fastened, the crush-locking lips on the forward contact face of the front nut body are forced inwardly and deform on the threaded shaft of the fastener bolt and into the space of the internal relief cut of the front nut body in order to form a permanent lock on the fastener bolt, and wherein the crush-locking lips on the forward contact face of the front nut body has an isosceles right-triangular cross-section, a base width of the right-triangular cross-section is approximately equal to a height of the right-triangular cross-section of the crush-locking lips.