does anyone have any idea with what this hasp is installed?  Both ends inside and out seem to have a revit or pin head of some sort. 
how do they do that to get it to be the same on both ends? 
a tube or split revit would show the split on the other end. 
maybe a pin flattened but that would bend and scratch up the front end 
i dont think its a force fit revit as none are that small 
any ideas how to install a hasp like this with available tools and a clean non scratched up way?