Clutch head bit

[Salty]

Got a question about a clutch head bit for screws on a manufactured home.
The screw looks like the clutch head pictured here, like a bowtie.
The only bit I have is one that looks like the image on the right.
Is this the correct bit? Although it is not exactly the same shape, it does fit. It also seems as though the bit can rotate slightly depending on which direction you turn it.
Is this done to avoid jaming the bit in the screw head?

TIA

Salty

[cabinetman]

That might be as close as you can get.
.

[Black wallnut]

If it were me I'd use it!

[Daryl]

I would do what ever it takes to get them out and replace with a phillips or square drive screw.

[MikeP]

That's the one. I still have some of those bits from working in a mobile home plant when I was working my way through school in 1971. That's about the worst drive system every created (other than straight slot). I threw away several pounds of the screws a few months ago when I moved into the new shop and culled everything.

I agree with the above, pull them with that bit and replace with Roberson (square drive).

MikeP

[ironhat]

Hi there, MikeP! Welcome aboard and good to see your post. Stick around and enjoy yourself.

[crokett]

As others have said, that is the bit. I helped one of my brothers replace all of those screws we could find with phillips ones on the mobile home he used to own.

[Salty]

Thanks all. I knew someone here had probably used them at some time.
I ordered square drive SS replacements from McMstr.

So, maybe someone also knows this:
I am replacing an outside access door to a water heater. It is a gas heater and is also an atmospheric type. This is a no-no nowadays as it is supposed to be an enclosed burner type.
Anyway, the old door had just a vent at the bottom of the door. However, someone had covered the entire inside of the door with 1-1/2" bead styrofoam, an did not cover that with metal. It also covered the vent.
Fortunately the door fits so poorly that it allows air inside for combustion.
My plan at this stage is to install a vent at the bottom of the new door that is about the same size as the old vent.
I really don't want to cut a hole in the floor for combustion air. Partly because of the difficulty of getting through to the crawl space and also because such a hole for an updated heater has to be directly under the heater.
Am I setting myself up for problems with just a vent at the bottom of the new door?
I'm doing this for a friend and eventually when they need to replace the heater it will be switched to an elec tankless, or a regular electric.

Salty