16 from nut 22 this is shown in fig5 wherein a conventional readily available socket wrench having a socket head 27 the remaining portion of the wrench not shown for convenience of illustration is installed onto the larger hex head 24 and pushes against the ears 21 of washer 16 which moves the ears 21 out of flats 26 as the socket head is rotated nut 22 is rotated counterclockwise to back nut 22 off of shaft 14 and washer 16 can then be removed although a pair of flats are shown on bolt 10 of fig1 and two mating sides are shown in washer 16 of fig2 only one mating straight edge need be provided on the washer this is shown in fig6 wherein like numerals refer to like parts of the embodiment of fig1 to 5 here shaft 30 has only one flat 31 mating with only one straight edge 32 of washer see also fig7 the operation as heretofore discussed is similar and further discussion is deemed unnecessary although flats are disclosed for the anti rotation feature between the bolt and the washer obviously other anti rotation means may be used this is shown in fig8 where again like numerals refer to like parts of the embodiment of fig1 to 5 thus bolt 34 has a hex head 35 and intermediate cylindrical portion 36 and an integral threaded shaft 37 however in this embodiment bolt 34 has an elongated slot 38 extending along shaft 37 washer 39 has a central generally circular opening 40 therethrough with a single tang 41 receivable in slot 38 of bolt 34 the initial assembly of parts is shown in fig9 the final assembly is shown in.