In article ,
Sue wrote:
There's no mention of Allen bolts: screws with a hexagonal hole which
rounds off any hexagonal key you try to undo them with.

Usually by using a metric key in an A/F hole, or vice versa. ;-)

Or Torx keys: a failed attempt to alter the law of nature I've just
described.

I've never had one of those give trouble - provided you make sure the hole
is clear so the tool fits fully in.

Of course, lots of people don't notice it is a Torx, and use allen keys in
it...

--
*I'm already visualizing the duct tape over your mouth

Dave Plowman London SW
To e-mail, change noise into sound.