where to find window key 3mm square?

Question

I've searched for this to no avail; searching the internet for anything related to windows and keys produces lots of results about Microsoft but not the wooden and glass variety.

I have moved into a ground floor flat with single-glazed wooden frame windows. The window catch has a hole in it to take a small key. When this is turned, the window catch cannot be moved, hence the window is locked.

The key is like a small allen key, only is is * square *, 3mmx3mm, and the square section is about 4mm long. I only have one key which is die-cast metal. I've taken it to two local independant hardware stores who can normally order most things, but they haven't a clue!

Any suggestions where I might get a couple of spares? There are no distinguishing marks on the key or window handles.

many thanks

Richard

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Dave Baker · Accepted Answer

Make one. File a bit of scrap metal down to size.--Dave Baker*** Free account sponsored by  ****** Encrypt your Internet usage with a free VPN account from ***

Mr Fixit · Answer

Andy Dingley · Answer

Get a piece of brass rod and drill a hole in it, a bit on the small size. Drill from the back to enlarge this hole, to within about 1/4" of the face.

File a piece of high-carbon steel (an annealed broken drill bit might do) into a square, matching your lock shaft. Hammer this into the brass as a broach, making a square hole.

Hacksaw a slot in the top and solder in a bit of sheet to make a handle.

(that's how I made mine anyway)

Frank Erskine · Answer

I've got something like that lying in front of me, and may have a couple more somewhere about the house, but they are easy enough to make yourself. If you're stuck, e.g. no file, let me have your snailmail address.

Ian Stirling · Answer

What I would do would be to find my most useless screwdriver, and attack it with the angle grinder. Failing that, a stone, or sandpaper will work, with care. Also, a 4.? mm flat bladed screwdriver may work just fine.

The Natural Philosopher · Answer

I would suggest grinding down an oversize key.

Weatherlawyer · Answer

I would suggest drilling some holes for dowels and use those. Evenscrewing them together if you can find a quick release screw or inventone.

The3rd Earl Of Derby · Answer

Why scrap? an allen key filed down will suffice.-- Sir Benjamin Middlethwaite

NT · Answer

B&Q Warehouse have them.

The3rd Earl Of Derby · Answer

The locks on my window have a square key, the locks are like this... a look in you're local sheds for these and buy one, if just for thekey.-- Sir Benjamin Middlethwaite

Dave Plowman (News) · Answer

That sounds very like the key supplied with those screw on stoppers youuse to allow a sash window to open only so far. one design but there are others. Mine came from Wicks, but many yearsago.

where to find window key 3mm square?

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