multi poit sash lock assmebly

I believe the lock you need is the newer style 38-138. Yours is the older style with a square looking body. See if our dimensions match up to yours. We also carry the 38-139, which has a longer fork. The plastic part you show might be the 39-265 lock bar guide. Take a look and match up these parts with your sample.

It's hard to be sure, tie bars come in a few different varieties. Start with our 38-903 and see if this is a match. Make sure the length, style of rollers, and how many rollers there are match your setup.