SWISCO - The Replacement Hardware Authority

Window lock hook of latch

A quick learner says:
Part number 40640 former manufactured by the window factory.
A home owner from Horsham, PA 19044 says:
Number on the hook part of the lock that gets latched is 40640. From a Window Factory manufactured double pane vinyl window from late 1990's. Can't find the locks.
User submitted a photo of window hardware.
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Mike from SWISCO responded:
Thank you for posting. We believe you may need product 90-237 keeper. Compare that to what you currently have and let us know if that is a good match for you.
A home owner from Horsham, PA 19044 says:
Thank you the 90-237 keeper fits the keeper portion of the assembly, but now the lock will not attach smoothly. Could you now tell me what new lock part goes with the 90-237 keeper to allow for a smooth latching.
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Dave from SWISCO responded:
I believe the problem could be with the top sash. Yours could be be a little lower than it should be. One reason why this happens is because the sashes are too tight, so with age the top sash is sagging a little. My first thought is to raise the keeper, but you might not be able to. Could you possible file down the height of the catch "spoon" on the lock?
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