I picked this piece up in a box of miscellaneous window hardware at an estate sale. These are very hard to come by, it is scuffed up a bit,( see photos). It is fully operational with a tight action, no slack in the operation. The piece has the longer shaft as seen in the 2nd photo. No mounting screws. Please look at the photos carefully and make sure this piece will work for your project before purchasing. This is a salvage piece, and is sold as is. Contact me with any questions.