The Windows are Bonneville Gold Sliding Windows.
The latch slides in from the top.
Dim. Of latch 2 7/16 L x 3/4"w x 3/8 thk
Paul from SWISCO responded:
August 4, 2017
Hm... I'm uncertain. Please re-check your dimensions and compare them to our 26-390 and 26-391 top tilt latches. They look very similar, but you'll need to verify that the measurements match.