Looking for a window lock handle

Question

Unfortunately, I do not have much information on the locking handle or the brand of the windows. The only thing that shows up on the locking mechanism is the word Roto and on the hinge mechanism it says Interlock 12C-IS23.

Thank you

Jasmine · Accepted Answer

Thanks for posting! Your casement lock reminds me of either the 38-138 with a 29MM fork or the 38-139 with a 37MM fork. To determine which of these might be the best fit for your window, carefully compare the dimensions below.

I've tagged a few of the other compatible pieces of hardware below as well.

Alternate image for 38-138

Alternate view of 38-138

Alternate image for 38-139

Alternate view of 38-139