I'm wondering what the proper name is for the bush that screws into the bottom of the bulb holder in a table lamp? If I knew what they were called, I might have a chance of searching for them.
I'm curious why they don't seem to be sold with the bulb holder or at least why they aren't sold by the shops that also sell bulb holders. I realise the DIY make-your-own-lamp market must be very small but there must be some demand, and they must also be useful when the bush in a shop-bought lamp breaks. Or is it just that we live in a throw away world and they expect us to buy a new lamp when that happens?