I was doing a bit of tidying up work on the fuel tank which involves inserting some bolts vertically upwards. The problem with this – as I learned before – is that, under the influence of gravity, they will drop back into the socket which doesn’t leave enough thread protruding to bite into the nut.
Following the principle of the sump plug socket I put a slice of fuel hose into an 11mm socket.
The bolt now sits on top of the fuel hose with the full amount of thread available.