I have one here but it is too thick for the valve in question. Have bodged it twice previously and it won't bodge again.
Like these.
Plenty of sources around here, just a matter of remembering what I went for when I get there

Drove past Scotswood B&Q on my way there and home but too lazy to make the slight detour off the A1.
Should have gone the 695 but the satnev rebelled.