Emco latch

Hello,

I think the 40-193 would be a good place to start since it resembles the storm door assembly shown in your photos. Take a look and feel free to get back to us with written-out dimensions of your part if you notice any discrepancies. From there, we can determine if there might be a closer match available. Thank you! 

Alternate image for 40-193

The determining factor would be how the dimensions compare to your assembly. Just let us know if you have any other questions once the order arrives and we can go from there. 

alternate view of 40-049

The 40-129 has a mounting hole that is offset in the cylinder. The 40-123 mounting hole is centered as shown below. I would recommend removing yours from the door to see which one matches yours.

Dimensions for 40-123

Alternate image for 40-129

Unfortunately, we are not able to make out precise dimensions from photos. As we mentioned, you would also need to remove the lock cylinder from the door to compare to the diagrams shown in our last response.