Casement window lock arm
A quick learner from Lindenhurst NY says:
May 19, 2016
Crank window closed and then lock with small arm that locks window with an outside vertical bar.
Tom from SWISCO responded:
May 20, 2016
Thanks for posting. I'm afraid I'm not sure what your question is. Can you go into more detail? If you need to replace any of your parts, please remove them from the window and take a picture for us to see. Please also provide your measurements.