In article ,
Smitty Two wrote:
Slightly confusing as a 1/2 AF
spanner fits a 5/16ths thread.

Unless it doesn't. We often use "small pattern" hex nuts, which have
thinner walls, hence driven with a smaller wrench. (lay Americans have
no idea what a "spanner" is, but when used here it usually quite
specifically means a very thin open-end wrench, often just made of
stamped steel, designed for tight quarters.)

Not come across those on UK cars. Where you need a smaller head than
standard, normally allen, torx or even one with curved sides which is an
exact fit to the next size down bi-hex socket. Basically to make the head
round or as near as possible to give maximum strength.

A wrench in the UK usually means an adjustable spanner of some sort, so
only used by amateurs. ;-)

--
*Great groups from little icons grow *

Dave Plowman London SW
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