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stripped grub screw

April 10 2011 at 8:27 AM
Jack  (Login Jack105)

The screw on the end of my r9 muzzle brake is stripped. Any advice on removing this annoying screw?

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Dave Rose
(Login DRose)

stripped grub screw

April 10 2011, 8:32 AM 

Try a torx head, may need to taper slightly and lightly tap in. A screw removal bit will work also. Dave

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Jim in SWMO
(Login jmhenrichs)

Another vote for the Torx bit.

April 10 2011, 9:40 AM 

I've had good luck using Torx bits to get stripped grub screws out. As long as the socket isn't stripped out too bad.

I've also had good luck with screw extractors. But sometimes finding one small enough can be a real pain. I have a set of spiral extractors that has worked for me.

"You've come far, pilgrim."------"Feels like far."
"Were it worth the trouble?"----"Ah, what trouble?"

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Mike melick
(Login mikeiniowa)

A modified screwdriver might work....

April 10 2011, 8:33 AM 

use a straight blade and sharpen it and narrow it to slightly larger than the size of the wrench used to remove, kind of jam it in and hope it holds....wrench and JB weld might work also...


This message has been edited by mikeiniowa on Apr 10, 2011 8:34 AM

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DAN O/Daniel O'Malley
(Login DANULSON988)

second the flat blade screw driver. need right size and jam it in. nt

April 10 2011, 9:25 AM 


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Randy Rees
(Login randyrees)

Heat it up..

April 10 2011, 1:06 PM 

All of the above are good ways to remove the grub screw and if you heat the area just a little with a heat gun you might have some better results when you try to remove it.

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Scot Heath
(Login ish00ttrap)

Are the threads stripped or is it the "head" thats stripped?

April 10 2011, 1:31 PM 

Lots of advise for a stripped head recess, some might work. A left hand twist drill bit is a good option if it comes to that.

If it's the threads in the brake that are stripped, you'll need to drill out the hole and re-tap or install a threaded insert. If the brake is alloy, an insert may be a good option as the large surface area of the OD of the insert will do much better in the allow and the hard ID will not strip nearly as easily.


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Neil Clague
(Login neilclague)

Left hand drill bit might help

April 10 2011, 7:32 PM 

Restoring old cars I came across many totally stripped screws and bolts, there are left hand drill bit sets for this, they heat up the part as you drill it and they often come out without going to the next step of using the remover tool. Good luck, Neil.

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