"richard" wrote in message
news
Hi

we are currently in the process of installing double bi-fold doors in
hardwood. The problem is the centre opening between the two doors which we
had hoped to secure with a conventional 5-lever lock moves too much.

The carpoenters solution is to install a surface mounted bolt whichwould
secure one of the doors to the frame and get some rigidity and allow
the 5-lever lock to work. I'm wondering if there is an alternative way.
I'm thinking of a flush mounted sliding bolt than can fit in the door
style and fix the door to the frame, but the maximum width of that bolt
must be 10mm - so pretty samll.

Does anyone know where I can get such a bolt, or have any other
unobtrusvie ways of securing the door?

Hope I've explained myself clearly!

regs
Ric

What about rack bolts, they are very small and unobtrusive, require a 16 mm
hole in the top or bottom of the door, but the operating key is tiny(
screwfix 49530), or flush bolts, where the operating part is in the side
edge of the door (screwfix 18988)or as Paul king suggests a high security
mortise door lock, that puts a bolt up and down at the same time as the
normal side action(can't see it in screwfix although they used to sell them)
or an espagnolette bolt (37219 or different colours with different numbers)