"Michael Chare" wrote in message
...
I want to tighten a chrome plated hexagonal nut on a central heating
radiator
valve without marking it in anyway.
(Part of a so called designer fitting.)

Any suggestions as to the best ways of doing this? I was considering
getting a
spanner of the right size and if possible using some thin paper between
the
spanner and the fitting.


--

Michael Chare



Surely a ring spanner of the right size will not mark the nut under normal
amounts of torque? The force will be distributed more evenly than with an
open ended spanner or wrench-plus-material-between-jaws.