External key + Assmebly

A quick learner from Ohio says:

Based on measurements I beleive I have an 82-265 lock on my sliding glass door. What is the part number for the optional external key assembly? I see a few and want to be sure before ordering. TY
A quick learner from Ohio says:
After posting I thought it might be helpful to explain I have a white 'sash controls' handle part number 988 which apears to have a knockout which is aprox 1 1/4 inches before it reaches the sliding door shell so I would imagine this lock bar would need to be at least 2 - 2.25 inches on the length. I also need a FLAT BAR to operate the lock mech. TY
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Tom from SWISCO responded:
Hmm... it's hard to say. Could I see a picture of the handle set in question? That will help us determine a good key lock that can work for it. Thank you!
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