sash lock- old aluminium window

A home owner from Oak Island, NC says:
thanks for any help... my house was built on the 60's. God bless!
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Lauren from SWISCO responded:

Hello, thank you for posting! 

Your lock resembles our 90-012 sliding window latch. Please review the dimensions below to confirm a good fit! 

Swisco.com
A home owner from Oak Island, NC says:
perfect. many thanks!
that's exactly what I need.
I undersand I need the screws too, right?

could you please let me which ones are appropriate ?
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Lauren from SWISCO responded:

Great! 

You should be able to use the original screws, but if you no longer have them, a screw like our 33-074 can be used. Please let me know if you have any additional questions. 

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