Latch and keeper combination

A quick learner from Florida says:
December 6, 2021
I have aluminum single hung windows with Alcan hardware. The 90-009 latch (white) is a good replacement for my latch and I can pair it with your 90-109 keeper but I do not see a compatible keeper offered in white. Can the 90-282 (white) be surface mounted on the upper sash to mate with the 90-009 or do you have a better option. My center to center spacing 2-1/4" and the latch hole set back is 3/8"
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Bob from SWISCO responded:
December 9, 2021

To be honest with you, I think you might be better off with a sash lock of the same style like our 90-180. This lock has the 2-1/4" hole spacing, as well as the 3/8" backset. It works with the 90-183 keeper. Take a look and see what you think. 
A quick learner from Florida says:
December 9, 2021
I looked at the 90-180 before posting my question. The top of my movable sash is 13/16" deep. It would appear that the 90-180 is about an inch or so deep and would overhang the face of the sash. Except for this foot print, the hardware is compatible. However, your 90183 keeper is a dead match to the Alcan. Thanks for the feed back.
A quick learner from Florida says:
December 9, 2021
What is the footprint depth measurement of the 90-180? I did not see that information on the images.
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Bob from SWISCO responded:
December 13, 2021

The depth of the 90-180, at its thickest point, is 1/2". Let me know if you have further questions. 
A quick learner from Florida says:
December 13, 2021
To rephrase my question, how wide does the sash need to be for the base of 90-180? The photo with measurements does not show this depth.
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Bob from SWISCO responded:
December 13, 2021

Apologies! The overall depth, or rather from the front to back edge of the lock body, is about 15/16". Let me know if you have further questions. 
Window Lock, 2-1/4"
Window Lock, 2-1/4"
90-009
$2.32
Window Sash Lock, 2-1/4"
Window Sash Lock, 2-1/4"
90-180
$2.97
Sash Lock Keeper, 2-1/4"
Sash Lock Keeper, 2-1/4"
90-183
$0.97
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