Patent ID: 11867222
Assignee: nan
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F | IPC F

Claim 4:
5. A fastening system comprising:
a shank member,
a nut positioned at one end of the shank member,
a bearing element receiving the other end of the shank member, and
a hybrid washer having an essentially disk-shaped body having an outer ring, an inner ring, and a bore extending through the inner ring, the outer ring including an engagement surface with a plurality of wedges forming a plurality of crests and troughs, the inner ring including a pair of spaced-apart essentially smooth flat surfaces in overlying relation with one another,
wherein the inner ring is essentially a smooth flat surface from the bore to the outer ring;
wherein the shank member inserts through the hybrid washer inner ring bore; and
wherein the hybrid washer outer ring engagement surface frictionally engages the bearing element.