Replacement Hook Lock for SGD-R15-96*96/SGD-R20-96*81

While our researchers look into this, could you let me know how far apart the two outer screw-holes on the side of the door are? We need to match that distance and choose a mortise lock that will fit in the same slot.

I'm afraid I haven't found anything with a hole spacing of 3-1/2". The closest I could find is our 82-218, but this has a hole spacing of 3-11/16". Based on the style of your door, I feel like this might be a good possibility, but double check your measurements just to be sure.

I would look at our 82-069 handle set. It's a different style than yours, but I don't think your exact type is made anymore. It has a hole spacing of 3-15/16" and is compatible with the 82-218. As long as your hole spacing is the same I think it'll work great.

Thanks for getting back to us. With the handle removed, I can see that your internal mortise lock has a turn lever hole in the center of the handle. That makes me think that our 82-080 handle set and 82-269 mortise lock would be a better option. However, the handle set only has a 4-15/16" hole spacing. I couldn't find anything with a hole spacing of 5-1/4".