Patent ID: 6461093
Filing Date: 2002-10-08
Classification: F16B,Y10S

Abstract:
A threaded fastener, comprising a bolt; a washer having a lower bearing surface adapted to bank on a surface of one of at least two elements to be connected with one another by the threaded fastener; and a nut including an inner sleeve in which said bolt is threadingly engaged and an outer sleeve which is threadably connected with said inner sleeve and has a face which banks on an upper bearing surface of said washer, said inner sleeve and said outer sleeve being provided with means for applying an active force and a relative force correspondingly, said washer having a smooth inner surface and being press fit with said smooth inner surface on a smooth outer surface of said inner sleeve, so that when the active force and the opposite reactive force are applied to said inner sleeve and to said outer sleeve correspondingly, said washer does not turn, while said bolt also does not turn but moves only in the axial direction.