They are called security torx bits. You can buy cheap sets of them from Mitre 10
gblack,
Jul 12, 4:46am
Absolutely aftermarket; car was Japanese import and the previous unit was annoying Japanese with Sat Nav warnings so she paid some mobile installer to fit the current head about 3 years ago.
Surprised that they left these bolts. Did find one Prius forum post in the US, with somebody asking same question; the poster said that they got them out anyway but didn't say how.
gblack,
Jul 12, 4:59am
Been looking at Mitre 10 site and Trademe, and don't these are Torx; Torx bits I would expect to insert into the head and have something like 5 splines. These look like they need a socket that has inner lobs.
Pretty hard to work off pictures, so I might have a better look later and take a look at the bits at Mitre 10 to compare
intrade,
Jul 12, 5:02am
probably vise grips to remove bolt
gunhand,
Jul 12, 5:13am
From what I remember about my years with bolts its a Usain Bolt. It should come out quite quick once it gets going.
apollo11,
Jul 12, 5:31am
The ones I have are six pointed. Bit hard to tell from your pic how many points yours has. You could always grab the outside surface with some vice grips I guess.
bigfatmat1,
Jul 12, 5:32am
The photo is quite poor quality but if I compare it to the size of the phillips it looks like a torx with the large center these are pretty common. However you can also get 5 sided security torx like they use on some airflow meters. Normal torx is six points. Some security torx have small pins in the middle some have slightly larger this looks like a larger on. A comprehensive secirity bit kit should have you covered
apollo11,
Jul 12, 5:34am
It might not be a bolt, it could also be a screw. Do you know anything about screws?
gunhand,
Jul 12, 5:54am
Let me work on that one.
apollo11,
Jul 12, 6:03am
Lol. I hope it isn't self tapping then.
gunhand,
Jul 12, 6:11am
You must not be married lol
apollo11,
Jul 12, 6:24am
I'm married to the point of exhaustion . She's a slave driver.
gunhand,
Jul 12, 6:37am
You must of got the box of screws on ya wedding day, most got the packet of 20.
boby11,
Jul 12, 7:06am
The top one is a pozidrive ,not philips and the bottom one needs a driver which can be be bought at a specialist tool warehouse
mrfxit,
Jul 12, 7:11am
You can get packets of security tool tips with a comprehensive selection, from Bunnings for $10. Includes a few I have never seen before
pauldw,
Jul 12, 9:30am
I don't think it is standard torx. If you google toyota radio security bolt you get clearer pictures. It looks similar but not regular spaced splines. Is your bolt like that? There are security bolts that don't have tools widely distributed.
ronaldo8,
Jul 12, 10:05am
Doesn't look like a security torx to be honest, the outer lobes are wrong, not evenly spaced, albeit the photo isn't very informative. It looks like one of those evil bryce fasteners, or a clone variant of.
otherwise just small punch or cold chisel them loose and then maybe use a thin small straight screw driver to slot into part of the security slot and unscrew them.
trouser,
Jul 12, 4:46pm
even worse the top one is a jis.
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