Patent ID: 7066053
Filing Date: 2006-06-27
Classification: F16B

Abstract:
1. A washer, comprising a body having an axis and provided with a first bearing face surface located at one axial side and adapted to cooperate with a nut, a second bearing face surface located at an opposite axial side and adapted to cooperate with an object, at least one third turning resistant surface adapted to cooperate with a thread of the bolt, said body having at least one breaking point arranged so that when the nut is turned and turns the bolt said body of the washer stops the bolt from turning and thereby the nut creates a pull on the bolt which elongates the bolt in an axial direction and applies to said body of the washer an axial force which breaks a portion of said body of the washer and allows said portion of said body of the washer to be pulled axially when the bolt elongates.