Hello Guys !
A little issue I have today.
I have ordered this piece from Ascher Racing :
https://www.ascher-racing.com/shop/sqr-70mm-adapter/
My goal was to do the same thing that Barry Rowland in this video (more or less):
One of the screws was tightened too much and the head screw failed…
I have tried with the technique with rubber but it was unsuccessful.
I don’t know what to do…?
Sorry to hear that @DenzelRacing
A couple of things you could try.
If you have a selection of torx/star bits that are slightly larger than the opening, you could try to gently hammer one of those into the opening and see if it will bite.
If that doesn’t work, another method is to use a hammer and centre punch on the outside edge of the head, as shown in this video at 10:50
Read somewhere that you can use some thin aluminium foil over the hole to fill the gaps when insert the Allen key
I’ve seen that too. Give that a try by all means if it can make your life easier 
Thanks a lot for your help. Very appreciated !
Rubber: not positive results.
Alluminium: not positive results, seems enlarge the hole a little…
The others idea, I am a little scare but I feel as if I had my back to the wall 
Your best option right now is to forget about Ascher adapter and use the supplied SQR with the 70mm adapter, put the QR1 directly to the SQR
Yes…
You are probably right but it’s boring me a little this bad screw (I know she’s here 
)
I paid 40€ (a little more) for this piece. And this configuration is less longer and more clean (Ascher adapter).
Now you need to “hammer” that screw and made new screw holes, not an easy task to do over a 1k piece of hardware, or work it with a precission lathe.
Then you must heat the screw to loose the loctite in it
Have you tried a larger torx head piece yet?
You won’t have to hammer it with much force. Just some small and slow hammer taps so that it bites into the head.
Another possible alternative… Do you have some other sizes of allen key available? If you do, you might find that a slightly larger size can now be gently tapped with a hammer into that enlarged opening.
Cover the qr with a protective cloth so that you don’t mark anything, go slowly and be as patient as you can. If you feel you are going to cause damage at anytime, just stop and take a break.
Ideally, it would be best to use a dedicated screw extractor set but I’m trying to recommend ways in which you can solve the issue without having to buy and wait for dedicated tools
@Mika Can you suggest any alternative ways to do this?
Unfortunately I’m not a mechanical engineer…
We have communicated to the factory to use much smaller amount of thread lock for these bolts.
@DenzelRacing If you aren’t feeling confident about going further then it could be a good idea to follow the advice from @Alfye20 and leave things alone for now while nothing has suffered any possible damage.
You could revisit that bolt later in the future, prepared with the exact tools to do the job. At the moment you can still use the SC2 and I don’t want you to do something you might regret 
Yes, everything is fine, it’s true. The most reasonable solution would be to leave this screw where she is, I agree. And forget about the Ascher adapter and use the supplied SQR with the 70mm adapter.
I’m not a mechanical engineer too…
Have you tried a larger torx head piece yet?
You won’t have to hammer it with much force. Just some small and slow hammer taps so that it bites into the head.
Why not, try this solution with precaution.
For now, I just tried with a flat screwdriver.
deally, it would be best to use a dedicated screw extractor set but I’m trying to recommend ways in which you can solve the issue without having to buy and wait for dedicated tools
Totally and thanks for that guys !
I am pleasantly surprised about the support (SC2 community).
EDIT :
Do you have some other sizes of allen key available? If you do, you might find that a slightly larger size can now be gently tapped with a hammer into that enlarged opening.
For now I have use the “2.5” but the 3 is to big to enter in the hole.
Thanks Mika.
Hopefully the guys at the factory will go with your suggestion as it will save possible difficulties like these in the future.
I nearly found myself in the same situation as above. Two of the three bolts on my unit had quite a large amount of thread lock applied whereas the other had none. Luckily, I was able to remove them without damaging the bolt heads but it was a close run thing.
I know I have one of the very early units so hopefully the build processes are becoming more streamlined with time.
Ok mate. I think you have arrived at the point where you might start to cause some damage to your unit so I would personally stop for now and wait until you can tackle the job with specialised tools.
If you damage the unit now, you are going to be very upset with yourself (and me). Stick with the original QR for now and come back to this job later with a fresh approach
I succeeded to leave two of the three screws cleanly, but same feeling (not perfectly fluid, some resistance).
I agree ! Thx guys !
There is only one problem in most cases in situations like this. Cheap Toll (Torx or something else) Before you try unscrew details, please, buy high quality tools, because they more THICKER 
I have mechanic one season, and he broke all high quality bolts because of his hands growing from his back
https://www.vartools.com/fr/jeu-de-cles-hexagonales-professionnelles-var-p1479.php
stuff like that ?
If you want the best and the thicker one, you need to take bolt example and go to shop. Because sometimes not all high price tools have good quality 
You can buy for 20 Euros and it will be enough. But anyway in your situation it’s possible, it doesn’t help (
