Enduralock, LLC

Logan Thorup

Harold Hess

A fastening device includes a fastener, a lock washer, and a lock nut. The fastener has a head portion, a threaded body portion, and a longitudinally extending flat section formed in the threaded body portion. The lock washer has an upper surface and a circumferential surface extending therefrom. The circumferential surface includes an array of radially-extending ratchet teeth. The lock washer also has an aperture with a flat inner surface configured to engage the flat section of the fastener and rotationally fix the lock washer. The lock nut has an upper surface and a peripheral outer surface extending therefrom and defining an axially-extending recessed portion. The upper surface includes an integrally-formed pawl arm having a tapered inner surface defining a tapered slot between the pawl arm and the lock nut in axial alignment with the recessed portion. The pawl arm includes a pawl tooth for engagement with the array of ratchet teeth.

Tools and ratchet locking mechanisms for threaded fasteners

A fastening device having a fastener with a head portion and an elongated threaded body portion extending axially from the head portion. The fastening device also includes a lock washer and a threaded lock nut for rotatably mating with the fastener. The lock washer has a lower surface with a plurality of ratchet teeth extending therefrom. The lock washer is configured to couple to the fastener for axial movement but is fixed rotationally. The threaded lock nut has an upper surface defining at least one pawl arm. The pawl arm includes at least one pawl tooth for engagement with at least one of the plurality of ratchet teeth, and a flange extending radially outward from the pawl arm.

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Overland Park, KS, United States of America

Logan Thorup