I need to replace the bulb in a plastic outdoor light fitting that takes a 2D type flourescent light bulb.
The cover is held own by two screws with heads of a type I've never seen before
The heads are triangular and each side of the triangle is a convex curve about 5mm long.
I'd be grateful for any info on what these are called and where I might find a tool to remove them
Perhaps these?
I've seen those - some sort of security bit.
Perhaps try Toolstation (etc) for a mixed pack of security bits - these seem to cover all the weird stuff I've seen.
Thanks no joy so far but I may have given a misleading description when I said "screw" - maybe I should have said bolt as it's the head that is triangular so it needs a mini socket to remove it
This photo
shows the shape of the thing but refers to a head with a hole in of this shape - I needs to remove a screw with a head that IS that shape!
Try a normal socket (adjust size to match the head).
5.5mm sockets remove the old Thorne lighting security screws.
Straight sided triangel, rather than curved triangle, a bit bigger than you want, and the wrong side of the Atlantic, but it might get you closer ...
If the head is "proud" as opposed to recessed, then as said, a normal socket will probably do it, as long as it's not too tight.
Or one of those "multi pin" socket things are sometimes good for odd shaped things.
Buy a set of security drivers from CPC.
Bill
A socket should work. If not...
NT
Yes - that is .com not .co.uk. :-(
Yes I saw something similar on the back of a Sony TV many moons ago.
One assumes its supposed to stop little johnny undoing them and poking his fingers near high voltages. Brian
Tim
That one doesn?t have all sides of the triangle convex.
Hmm, time for a "Birmingham screwdriver" and new light fitting then I think. ;-)
Tim
Dunno, a dremel is a tad more elegant.
Might they be tri-head - similar but with more rounded corners:
Sod's law dictates that it will be recessed down a hole. ;-)
Tim
Just out of interest, is there a reason a light with security screws has been used? Is it in a public place? If not, I think replacement with another light without security screws will save a lot if aggro.
Presumably the fixture came with a security screw key that the sparky has made off with to ensure repeat business.
Tim
In message , Ranger writes
I think they do - look at the smallest size. Fifteen quid via eBay, postage paid. The eBay photo makes the convex appear more pronounced.
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