A quick learner from Boise, ID says:
April 14, 2015
I purchased item #82-041 patio glass door handle set, 3-15/16. I realize now that I also need a lock mechanism to fit this handle. The spring broke in the one in the photos, which is 4" X 1 1/8" X 1/2" thick. Thank you!
Tom from SWISCO responded:
April 15, 2015
You should consider our 82-218. This looks very similar and seems close to your dimensions. Just double check to be sure.