.~ Making internally threaded fastener, e.g., nut {5}
23
.~.~ Having driver engagement feature, e.g., wing nut, etc.
DEFINITION
Classification: 470/23
Having driver engagement feature, e.g., wing nut, etc.:
(under subclass 18) Subject matter wherein the fastener is provided with structure for receiving a means used to move the fastener during its fastening operation.