| 摘要 |
This utility model discloses a lock nut adapted to be fastened to a bolt which comprises a generally cylindrical nut body having a closed top portion and an open bottom portion and being defined by a threaded internal portion being accessed through said bottom portion. The nut body is generally cylindrical adapted to cover the elongated thread of a bolt and further defined externally by a plain lower portion, a tapering portion extending upwardly from said plain lower portion, and a generally hexagonal upper portion extending upwardly from the tapering portion. |
