ONE-PIECE SELF-LOCKING NUT

摘要

A self-locking nut is formed with a rear nut body with internal threading and 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. When the nut is tightened down on an object on a fastener bolt, the crush-locking lips are forced inwardly and deformed on the threaded shaft of the fastener bolt into the space of the internal relief cut in order to form a permanent lock on the fastener bolt. In another preferred embodiment, the self-locking nut has a front “flying saucer” shaped part configured to work like a “jam nut” portion, and a rear “nut body” part having a front indentation space configured to work like an inner relief cut. The two parts are joined together by circumferential welding and flattening of the “flying saucer” part into the inner relief cut space of the “nut body” part while leaving a small gap between the parts.

主权项

1. A self-locking nut comprising:
a rear nut body having internal threading for threading on a threaded shaft of a fastener bolt, and a front nut body joined with the rear 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 nut is tightened down on an object on a fastener bolt, 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.