Hand Crank and Window Latches
Thanks for writing in! The window operators remind me of the 39-031 and 39-032 EntryGard Dual Arm Operators. Carefully compare the diagram below to confirm this is the correct style.
The compatible hardware and accessories can be found tagged below this thread.
The window hardware you have is Truth brand hardware. The sash locks can most likely be replaced with the 38-075 Truth Hardware Low Profile Sash Lock. It uses the 38-089 Casement Window Keeper.
To confirm that these are the fit replacements, carefully compare the specifications. It is non-handed, so it will work for both left and right handed applications.
The available finishes for each of the recommended parts can be viewed directly on the website.