| 摘要 |
A locking threaded bolt is provided whose head has an inclined seat surface. The angle of the incline of the head seat surface is such that when the bolt is tightened to a predetermined torque within a threaded hole, the entire seat surface is in contact with the upper surface of an article to be fastened, and a shearing stress is applied to the shank of the bolt in a transverse direction. This shearing stress causes reduced clearance between the threads of the bolt and the threads of the threaded hole, thereby firmly locking the bolt in the hole and preventing loosening of the bolt.
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