WHAT DOES THE 38-090 GRAB ONTO?

A quick learner from CONNECTICUT says:
June 7, 2013
HELLO THERE, IM ABOUT TO BUY A SET OF SilverLine Casement Locking Handle Product Code: 38-090 BUT THE WINDOW IS MISSING PARTS WHERE THE LOCKING MECHANISM GRABS ON TO IT , WHERE I CAN GET THOSE PARTS??
User submitted photos of window hardware.
A handy person from Philadelphia says:
June 7, 2013
In the image the lockbar is broken off, there are the small plastic tabs (circled in red) that are pop rivetet to the window from, the lockbar is an aluminum channel that is held to the window with these and allows it to slide up and down when the lock handle is actuated. They were broken off when some attempted to force the window open without lifting the lock handle. I need to get these plastic tabs so I can fix and use the window.
User submitted photos of window hardware.
Profile picture of Tom
Tom from SWISCO responded:
June 13, 2013
Thanks for posting, both of you! I think you guys are looking for the same thing. Check out our 39-544, which acts as a keeper of sorts for the 38-090 and let me know if you agree.
A quick learner from New Jersey says:
August 8, 2020
Similar as above i want to install lockbar .but I don't know which pop rivet and pop rivet gun i have to
Use
Profile picture of Dave Sr.
Dave Sr. from SWISCO responded:
August 12, 2020

The diameter of the hole in the 39-544 is a little over 1/8" in diameter. It would take a pop rivet like the 33-006 or the longer  33-005. The tool to use would be the 75-012 Rivet tool. It can be used on various diameter pop rivets by changing the head.
Reply to Thread
Use this form to ask a follow-up question or to share your experience regarding this subject.
(your email address will be kept private and is only used to inform you when a response has been made)
Current wait time is 4-7 business days
We promise that one of our experts will personally get back to you as soon as they are able. Thank you very much for your patience and understanding. If your inquiry is time-sensitive, please feel free to reach us at 856-317-6263 or at help@swisco.com.