window lock and socket replacement

A home owner from Mattapan, Ma says:
Hello, I will need to order 30 of these locks and sockets (please see pictures below) as soon as possible. Thank you.
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Paul from SWISCO responded:

Hmm...Your sash lock shows some of the same features as the 90-308. Take a look and see what you think. However, I can't be 100% sure this will work with the 90-307 keeper. Look both pieces mentioned and let us know your thoughts. 

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