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      08-22-2019, 03:59 PM   #1
buster-riley
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Stainless Steel rotor retention screws worth it?

I have been changing wheels/tires a lot lately and putting a drop of liquid wrench on the retaining screws holding the rotor to the hub. I am thinking I should change them out for stainless screws. Is this worthwhile or just face the music later when it is replacement time. I only have 25,000 miles and the pads are looking thin and the rotors scored deeply. Probably the auto crossing. Who sells the screws, are they all the same size, I have a 2016 m235i RWD, are they all the same quality? What is the wisdom of the community?
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      08-22-2019, 05:02 PM   #2
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What does liquid wrench do ? Does it prevent corrosion ?
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      08-22-2019, 08:17 PM   #3
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A small dab of anti-seize compound on the threads of the stock screw is all you need - save your $$.
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      08-23-2019, 08:09 AM   #4
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I have changed them to stainless in older BMW's. I have had the heads break off on some that were on too long. I just cut a slit in it with a hacksaw and undid it with a flat head. not a big deal.

id do it, but not until replacing rotors. it's not a huge deal.
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      08-23-2019, 08:36 AM   #5
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I think they advise using a manual impact driver to undo the rotor retention bolt.

https://m.sears.com/craftsman-impact...hoCkgYQAvD_BwE
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      08-23-2019, 11:35 AM   #6
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Quote:
Originally Posted by ScottSinger View Post
I think they advise using a manual impact driver to undo the rotor retention bolt.

https://m.sears.com/craftsman-impact...hoCkgYQAvD_BwE
Yep, got one of those on my tool box, it works great.....
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      08-25-2019, 10:44 AM   #7
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Quote:
Originally Posted by John in VA View Post
A small dab of anti-seize compound on the threads of the stock screw is all you need - save your $$.
Recommend anti-seize over liquid wrench. I keep a jar of each of these on hand; a small jar will last for years for most of us. The copper version is good for the rotor retention screws as it has rust inhibitors. A small amount of the copper version on lug bolts also inhibits rust. [Must use torque wrench. Don't over-torque.] Nickel version great for exhaust fasteners.

The anti-seize probably makes sense even with the stainless screws.

https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1

https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
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