I'm neither a fastner snob or looking for an argument but rather I want
listers to enjoy their cars rather than spend time trying to undo parts held
together which chewed up fastners.
Of course you can use a Phillips screwdriver on Posidrive screws but it's not
the correct tool and chews up the scew heads. Likewise you can use vise
grips instead of wrenches.
My experience of using a Posidrive screwdriver on Posidrive scews is that it
doesn't damage them and both have a long life.
You're right you don't need a proper tool to any job unless you want to do it
properly. Use a Phillips screwdriver on your first brake job and then use a
drill to drill out a damaged head on your second brake job.
With the correct thread any countersunk head fastener will get the job done
including a torx but ...... does that mean getting a special torx tool?
All I was doing here was pointing out that the screw is a Posidrive not a
Phillips and using the wrong tool chews it up. Now, back to negative camber on
a
live axle car!
Daniel1312
In a message dated 10/06/07 17:34:46 GMT Daylight Time, derf247@gmail.com
writes:
>
> OK, there is a difference. But, I contend that you can use a Phillips
> screwdriver on them. Also, even if you do use the "correct" driver,
> it will "invariably destroy the screw head" after 10-12 torquings, or
> sooner if you apply too much torque.
> You can certainly get more torque on a Posidrive, but the application
> stated doesn't need so much torque. I generally cheat on removal of
> those things anyway and use a 3/8" impact wrench with the "proper"
> tip.
> I didn't want to start an argument on this but I don't want people to
> think they have to go hunting for a special screwdriver if they just
> want to do a brake job. The two Posidrive screws just keep the seals
> in place when you remove the wheel and brake drum and the one just
> keeps the brake drum in place if you remove the wheel. Once the lugs
> are tightened the Posidrives aren't critical and aren't even useful
> until you remove the wheel.
> If you're a fastener snob then you'll want to replace them with Torx
> drive screws anyway. Do they make a 1/4-28 flat head TorX? Isn't
> that a 1/4-28 screw?
> Cheers,
> Derf
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