I'm trying to source some new ones but don't know the name.
They attach door handles to the door by screwing into each other, both look
like screws from the outside when in place, but one is a (approx 2" long)
threaded bolt and the other is a (approx 2" long) smooth tube with a thread
inside it which the first bit screws into, to "sandwich" both handles onto
the door when they're tightened together. Same principle as nut and bolt,
but much better looking. Not sure of diameter, but they fit through the
screw-holes of standard door handles.
The ones supplied with the handles were too long and I've gone and chewed
the screwdriver slots because I didn't realise they were fully tightened,
but the handles were still loose. So I'm trying to source a supplier, but
have no idea if they've got their own name. Many thanks