40-year old Sash Lock identification
Home Owner from Bothell, Washington
Oct 4, 2026 9:03 pm
I have a 43-year old wood wrapped casement window made by Weathervane (in Seattle, Washington). One of the window locks broke. I think it might be a Swisco lock (maybe an 38-075). Attached are three photos: One is of a functioning lock in a working window. The other two are of the broken lock (top and bottom side). It is a bronze finish. I'm hoping to replace the lock with a screw-in replacement without needing to adjust anything in the window.
3 user uploaded images
4 Replies
Jasmine from SWISCO
Oct 6, 2026 1:03 pm
Hey there,
This window lock appears to be a closer match for the 38-144 Primary Casement Sash Lock. This lock is non-handed, so it can be used for both right and left handed applications. It is available in bronze.
The compatible keepers are the 38-276 and 38-277 Casement Sash Keepers. These are right and left handed.
Alternate image for 38-144
Alternate view of 38-144
Home Owner from Bothell, Washington
Oct 11, 2026 7:45 pm
Thank you. This was helpful. But the measurements don't match exactly. Here is a drawing of my part's measurements. Do you know of a part that matches these measurements more closely?
1 user uploaded image
Jasmine from SWISCO
Oct 12, 2026 9:16 am
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