Pan am window crank

A home owner from North Carolina says:

My right handed Pan Am Window crank looks like the 39-017. The top holes 1/2" apart and bottom holes 1 5/16" are the same as mine. The difference is between the top holes and bottom on the 39-017 are 5 1/4", mine are 5 1/8". The 2 3/8" arm on the 39-017 are 2 9/16" on mine and there are no threads. There is a 3/8"shoulder bolt with 5/16" threads that goes through the arm and screws into the window arm. On one side is the name Pan Am and on the other is a #60. I talked to Steve Friday 2/10 and he said to give you a try. Thank you for your help. If you need additional info, my name is Ronnie 

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Dave Sr. from SWISCO responded:

Hello,

I do believe that the Pan Am 39-017 should fit your window since the dimensions are close to the original crank. However, take note the 39-017 link arm has a threaded hole at the end of the link arm. 

You may also want to double-check to confirm if the hole at the end of your link arm is a threaded type that accepts the 33-067 shoulder screw. Thank you. 

A home owner from North Carolina says:
Dave, Since the 39-017 has threads 5/16 18 and my window has the same, do you think I could use a hardened 5/16 bolt and a lock nut to secure the arm and window. Would a nut prevent the window from closing or could I just use lock tight on it to prevent it from coming loose?
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Dave Sr. from SWISCO responded:

I would recommend trying the "loctite" first. I'm not saying that a threaded nut would interfere with the window operating but the Loctite glue would be a good place to start. 

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