"sm_jamieson" wrote in message
...
Whats the name (i.e. internet search term) for those bolts with a
slotted pan head. I need to improve security on my garage doors, so
replacing the screws in the external hinges with bolts running all the
way through, but it would be good if they look like screws on the
outside !


Do you mean "machine screw"? Having said that, the coach bolt idea
suggested by Matty F is far more secure because the only way to undo them is
from the inside. You could even use a dome headed bolt if the square shank
on a coack bolt causes problems. One other possibility is a type of
security screw I once saw where the sides of the slots sloped down to one
end which effectively meant that they could be screwed in by the normal
method but there was no purchase for unscrewing. There is a version of it
he
http://tinyurl.com/39gyg8v
Of course you will have a problem with that method when you decide to take
the doors off for any reason.
--
Tinkerer