MST 327 Stronghand Corner Magnet. Holds from the outside.
Posted by Cary Kossaras on 16th Oct 2017
I was hoping these magnets were larger than they appear. It was my fault for not doing more research. They would be exactly what I was looking for if the were 90 degrees on the inside and out and another 1 inch wider. 60 degrees is not very common.
Besides that they work fine.