A: If your mail box is cast iron you should be able to drill holes as cast iron is very easy to drill holes in. I had to replace a latch on my mail box and this was the type I had and the replacement latch has worked fine for years now.https://www.homedepot.com/p/Everbilt-11-lbs-Magnetic-Catch-with-Counter-Plate-Brown-1-pack-9235940/303046168#overlay. Hope this helps
A: Not cast iron...
A: I would think it would be to light to work for an outside gate.
A: I don't see why not.
A: It's a little small for a metal gate, unless it's a little gate, not the standard size walk-through gate.
|Name||Catches Collection 1-5/16 in. C/C Cabinet Door Catch Cadmium||Double Roller Catch with Spear, Zinc Plated (1-Pack)||Double Roller Catch, Nickel Plated (1-Pack)||High Rise Magnetic Catch, White (1-Pack)|
|Latch Type||Roller||Surface mounted||Surface mounted||Surface mounted|
|Hardware Finish Family||Brushed||Gloss||Polished||No Finish|
|View Product||View Product||View Product||View Product|