| 摘要 |
A fastening system which includes a bolt, a washer with at least one protrusion on one surface and at least one tooth on the other surface, and a nut with at least one tooth on a surface are provided. The teeth on the surfaces of the nut and washer are configured to drive the protrusion into an object, and also prevent the nut from backing off of the bolt. The fastening system can include a plurality of teeth on the surface of the nut and washer that form ratcheted surfaces, where the ratcheted surface of the nut and the ratcheted surface of the washer are inverted with each other. The fastening system can also include a plurality of protrusions located on a surface of the washer that are configured to be driven into an object. |
