Questions about my internal latch

A handy person from Michigan says:
Before i place an order i would like to make sure of a couple things and find out about another.

i think i have the right spiral balances, series 600 18" (I measured) blue tip? The 1/4 screw plug seems generic?

And lastly, i am kind of lost on the internal latches and sash releases. Can you give me a recommendation based on these photos? Do these window come apart fairly easily?
User submitted photos of window hardware.
Profile picture of Paul
Paul from SWISCO responded:
The Series 600 does look close, but you will have to measure the diameter of the tube to be sure. If it's 5/8" or 9/16", then that's a good choice. The screw plug resembles our 26-200, see if that will work for you.

As for the internal latches, yours is not available. These can be tricky to replace even in the best of time, so you may want to consider replacing your inside tilt latch with a surface mounted tilt latch. This could be a much easier solution in the long run. Watch the video below to see how.
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