I ordered and received a 1/4" foot for my viking. When it arrived it was not a snap on that all my other feet are, but when I took the snapon ankle off and went to screw in the new one, the screw was not long enough( the snap on ankle has a recessed area for the screw, new foot does not) I tried the viking stores in town, they don't seem to know what I am talking about. Any ideas? :roll: