Originally Posted by cn90

I don't need anyone to accept my DIY.
My conclusion is based on real life experience.
Real life experience is interesting to hear but so far you have presented no facts that endorse real life experience.

Your Fastenal article above serves little purpose.
We already know all that stuff.
If you know all the stuff why are you disagreeing with me?

Now, do a google search using key words "bmw stiffening plate bolt reuse", you will see that 99% of the posts are from DIYers at home and not mechanics. Naturally, these DIYers are concerned b/c they read Bentley manual etc.
The point was not the DIY information didn't count for anything.The point was that DIY conclusions are based on experience that can't be blindly accepted as conclusive proof. If I state my experience are you going to accept that as factual?

Just got off the phone with my cousin, who owns a BMW indy shop in Los Angeles area. All he does all day is BMWs and nothing else. And he has repaired BMW for 30 years. He just laughed at this thread b/c he re-uses the bolts all the time and does not recall one incidence of any problem. He said these are not TTY bolts. rather, they are TTA bolts.
BTW, the only time he ever replaces the bolts routinely is the head gasket job and that is about it fixing BMWs all day long...TTA is process for achieving a particular clamping power. It is not a kind of bolt. Sometimes the TTA process results in plastic deformation and sometimes it does not. It depends on the particular bolt. I have said many times that I don't know if the bolts should be reused or not. I have been saying your conclusion the bolts can be reused has no factual foundation. All you have been doing is making the same claims over and over sometimes in different words.

So, there you go, you can sit here and argue all you want...