You lot are a bad influence!
An ADS200 turned up today
It must have been on Farnell's shelves for a while. Firmware 1-2
The top part of my hand piece stand is very wobbly. The screw at the rear seems to have had the threads destroyed
Cool, you will get to enjoy the difference between the 1.2 and 1.4 firmware plus have a spare
I have several of the stands and they are essentially the same base part across both Intelliheat and Accudrive stations, I recall one was a bit loose after being fully tightened.
It may seem like thread is stripped when it isn't so careful to avoid overly tightening or crossing the thread. If it is stripped the screw will freely turn forever under screwing force (rather than tightening force). If that is not the case do the following which worked for me.
With a good screwdriver try and back out the screw if you can, ensure the thread is clean and apply some wax or oil on the screws thread (this will make it easier to tell if tight is tight). If there is still a bit of wiggle add a washer under the screws head. It can be anything bit of card, plastic, loop of wire or few turns of solder might even work, or you can add a shim or washer between the two plates if that works better.
You are just trying to add a spacer so if the thread is biting it will allow the screw to have more purchase to pull the two plates together. See how you go.