Киевский Национальный Университет Технологий И Дизайна
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Priority to UAU201212191UpriorityCriticalpatent/UA79531U/en
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A threaded fastener includes parts connected to each other with a bolt, a nut turned on to the bolt, and mean against the nut self-unfastening. The mean against the nut self-unfastening is arranged as a slot that is placed at the end of the bolt, at that the slot has dimensions that are chosen from the condition:h=(0.5…0.8)d; Δ=(0.1…0.2)d; l=(0.2…0.5)d,where h – depth of the slot;d – outer diameter of threading;Δ - width of the slot;l – distance of the axis of the slot from the outer diameter of the threading.
Fastener system comprising an externally threaded bolt and an internally threaded nut for the avoidance of cross-threading of the mating threads during assembly.