| 摘要 |
PURPOSE: A cap nut with improved coupling force is provided to reinforce the coupling force between a nut body and a cap for preventing the deviation of the cap from the nut body in spite of a stronger fastening torque and preventing the damage of the cap. CONSTITUTION: A cap nut with improved coupling force includes a nut body(11) formed with an inner peripheral surface(12) formed with a thread and an outer peripheral surface(13) formed with protrusions(14), wherein the nut body is covered by a cap(10) and the cap is formed with grooves(10a) for receiving the protrusions(14) of the outer peripheral surface(13).
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