Hex radiator Allen Key

[andrew_net82]

Hi

I'm trying to fit trv's to my radiators and I’ve purchased a hex Allen key to remove the old brass nuts off the radiators. But I can only remove half of them. Some of the radiator brass nuts are too small for the allen key, could someone tell me if there is a smaller hex radiator Allen key available or do I just buy a standard Allen key that will fit.

 

[cross thread]

you can buy one that gradually tapers to fit most sizes

 

[andrew_net82]

do you know if there is a web site where i can get one from?

 

[cross thread]

local plumbers merchants will stock them

 

[TicklyT]

Some of the allen keys I've seen haven't been particularly well made to start with. The business end had been left ragged as if it had been cut off with a shear, and just left at that. Fortuately the steel was soft enough to do a bit of tidying up with a file so it would fit. Another sign of what excellent quality it was!

 

[gigz]

If you disconnect the pipe from the valve first, then tighten the the nut which connects the valve to the tail, you can turn the tail out with the valve.

 

[bster]

check that the tail hasnt got 'lugs' inside it, if it has buy a rad spanner that has two grooves in it that insert into the lugs.

 

[kevplumb]

try monument