What's this screw called?

carvell · Scuttler Joined: 05 Sep 2003 Karma :

Kind of like an "interrupted flathead".

I need a (proper) device to get this type of screw undone. I've done it before with long nosed pliars and I know I can cut a notch in a screwdriver, but I'm wondering if anyone knows the proper name for them?
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Yamaha TDM 850

bugsy46 · Village Idiot Joined: 16 Mar 2004 Karma :

from what I can see it looks like a "spanner head" type screw
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stirlinggaz · World Chat Champion Joined: 22 Jul 2007 Karma :

hi,
dunno what its called, but it looks very like the security screws/bolts that i came across ages ago, on a headlight unit, i think.
bought the "assorted security bits" set for screwdriver which has the required bit.( the cheap sets that you see at the market etc)
set came in very handy for removing wierd screws.
cheers,
GAZ

carvell · Scuttler Joined: 05 Sep 2003 Karma :

veeeffarr · Super Spammer Joined: 22 Jul 2004 Karma :

I've got them on the back of a power strip I recently bought (that blew up Rolling Eyes

)

If it helps the Zumo 550 uses a screw like that, and it comes with the screwdriver on a keyring.

G · The Voice of Reason Joined: 02 Feb 2002 Karma :

As above; it's standard in 'sercurity bit sets' or just big bit sets. I probably have some spare - could drop you one in the post if you don't get anything else sorted if you want.

carvell · Scuttler Joined: 05 Sep 2003 Karma :

Thanks guys.

I'll go to el cheapo "hardware" shop down the road tomorrow and see what cheapy bit sets they've got in.

Failing that, I've spied one on ebay (https://tinyurl.com/632k4t) that looks like it has the bits I'm after.

Oh, and I'm sorry I doubted you bugsy46! When I typed "spanner bit" into Google the first time I got all sorts of funny screw heads, but further investigation reveals that they are inface called spanner bits.

https://www.mytoolstore.com/sk/spanner.jpg
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Yamaha TDM 850

Pete. · Super Spammer Joined: 22 Aug 2006 Karma :

Why not take a standard flat-blade screwdriver and cut a small groove in it with a grinder/hacksaw?
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stirlinggaz · World Chat Champion Joined: 22 Jul 2007 Karma :

bugsy46 · Village Idiot Joined: 16 Mar 2004 Karma :