Blower Motor Screws

Anyone have an idea what type of star drive the blower motor mounting screws for the late 80s and early 90s trucks? Seems like a fairly standard HVAC type screw with an external hex drive, flathead drive, and some sort of star drive that looks almost (but not quite) like torx?
More curious than anything.

 

looks like a flathead/torx hybrid

 

I tried Torx bits, a T20 is too loose and a T25 doesn't fit either because the "arms" of the star on the screw head are too long and narrow. Compare that the broader/ shorter arms of a Torx star.

 

What the What? why would Toyota need a special tool for a screw that has 2 other methods of tightening

 

I'd just replace them with the right length/thread from the hardware store and some form of a traditional head.

 

I know, right? Who knows what was going on in the 80s, but from a little googling, it looks like they were using these screws in some Toyota sedans through the early 2000s.
https://www.ebay.com/p/655834500
(Also, $13 for 3 chewed up screws?!??!)

Yeah, that’s the plan. The other two are pretty beat up and corroded.

 

Those are not factory hardware .

Just find the correct size Hex head screw!

If you really want I have many parts vehicles of that generation.

Need anything else??

 

Absolutely, I'm planning on replacing them with something from the hardware store. I was just curious.

Are you sure they aren't factory? I've seen the same screw on other heater parts (see https://www.ebay.com/itm/284313337310, https://www.ebay.com/p/655834500).

I'm looking for AC system parts, if you have any in good shape.

 

100% sure those are not factory .With a drive like your screws have.

If you saw then on used parts they have been replaced.

Screws yes they all use JIS screws never a drive like yours .

Any AC parts I have I sure would not trust after all these years .

New Aftermarket parts have come down in price Quality who knows .

 

Yeah it's tough. My truck came without A/C and that's not great in the summer. I don't really want to mess with an aftermarket A/C of questionable quality, so I've been looking for an intact OEM AC system on a parts truck.

I know I'll probably need to replace the compressor and the desiccant, but I'd rather have an OEM system.

Anyways, that's probably why I still don't have A/C after almost 20 years of owning the truck.

 

Looks universal, like a combination of Socket, Flat and Phillips.
Try a lager Phillips bit, like a #4 size?

 

The photo I posted initially is from a little bit of an angle, but there’s 60 degrees between each arm, not 90 degrees like on a Phillips/ JIS drive.