A WASHER

摘要

A washer assembly for a threaded fastener said assembly including a first washer portion having an aperture through which the threaded fastener is to pass, and a surface surrounding said aperture; and a second washer portion, said second washer portion having an aperture through which the fastener is to pass, the second portion having a surface surrounding the aperture of the second portion and being positioned to abut the surface of the first portion and to be urged into contact therewith upon tensioning of the fastener; and wherein the surface of said second portion extends beyond the aperture of said first portion when the surfaces abut, the aperture of said first portion is dimensioned to provide for relative movement between the portions with the apertures aligned to provide for the insertion of the threaded fastener therethrough, and said surfaces have cooperating projections and recesses that inhibit relative movement between the portions when the threaded fastener is tensioned urging the surface of said second portion against the surface of said first portion.