Internally threaded fastener and stemmed washer assembly

F - Mech Eng,Light,Heat,Weapons – 16 – B

Patent

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Details

F16B 37/00 (2006.01) F16B 37/04 (2006.01) F16B 39/24 (2006.01) F16B 43/00 (2006.01)

Patent

CA 2414706

An assembly of an internally threaded fastener and a stemmed washer is provided, such as for applications in which a standoff is desired between a washer and a mating externally threaded fastener. The stemmed washer includes a washer portion, a retaining portion and a standoff portion. The washer portion is angled relative to the standoff portion. The angle of the washer portion to the standoff portion may be varied to change the effective length of the standoff portion. The retaining portion interfaces with the internally threaded fastener to retain the fastener in the assembly. The stemmed washer may include a skirt that is plastically deformed to capture the fastener. The fastener may include a skirt which similarly plastically to mate with a retaining lip on the stemmed washer. The fastener and washer may be secured in the assembly to permit relative rotation of the fastener with respect to the washer.

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