I need to turn on a radiator and want to remove the valve top to put a spanner on it as it as it is stiff,
however the screw holding it on looks like a security screw as it has two holes in it.
Has anyone seen these before?
You may also need extension tails as radiator sizes have changed, also get some blanking plugs temporarily in case the valves let by.
I needed a 3/4 washing machine blanking plug for mine, yours may be different.