What kind of tool do I need to access this bolt

tools

I would like to unscrew a nut that is in a pretty hard to access position. It is at the end of a very long screw, in a cramped space. There must be a tool that allows me to work on that nut, but I don’t know what it would be called.

Can anyone name what I should be looking for on Amazon or the local hardware store?

For context, this is the screw that holds the toilet seat lid in place. In the pictures, it’s the one at the end of the long screw.

bolt
enter image description here

Edit: The top of the toilet seat looks like the following, I don’t see any screw, nor it seems possible to rotate the caps as they hold the lid in place and the sit can’t be removed unless I unscrew the nut first.

top on the screw
top of the screw

Best Answer

I believe the tool to get a proper "bite" on the nut is a crow foot wrench attachment. You'll be able to get a cockeyed bite on the nut using a typical wrench in order to unscrew it from above, but just for posterity, a crowfoot wrench is used for these angles. I've also had deep sockets that are hexagonal at the end so that they may be used in a wrench. Seeing as how you cannot unscrew from the top, I suggest using a socket with a hexagonal end fitted into a flex head gear wrench.