
Where it drops vertically into the ground sits in a sleeve like this:

But there is no sign of one of these (which would hold the gate much more securely):

What is that latter piece called? I did try googling and found a couple on sale, but not in the size/shape I need. I've currently bought a whole new bolt set (which is what i took the photos of), but it seems a rather expensive way to get that one component.