Fake ARP bolts?

[GTSBoy]

Hi Gents,

Someone I know (experienced engine builder) built an engine. It had some chinesium rods that came with ARP 2000 bolts. One failed on the dyno, destroyed the whole thing. The only possibilities are:

• Installation error. Possible, but we should discount it almost 100% because he knows what he's doing. He doesn't discount it that much, because he's being hard on himself.
• QC/QA problems with ARP products. I'd like to discount this, but I have heard a number of stories about similar failures, and stories of some builders buying 2 sets of everything, x-raying everything, and picking only those bolts that they are completely happy with. This behaviour coming from anecdotal stories of ~1% failure rates. 1% of all rod bolts failing would be about 1000x higher than I would expect to be anywhere near tolerable. If I were ARP I certainly wouldn't even be selling the product if they were dying at that rate (for non-installation error reasons). So, I would prefer to discount that possibility too.
• Fakes. Specifically, fakes being sold bundled with cheap rods sets from CCP factory B in Shenzen, or wherever the stuff is being made this week.

So the question here is, does anyone else have some horror stories that would point to fakes being circulated in this manner?

[The Bogan]

Heaps of historical info on this, a quick Google gave dates back to 2012, all talk about identification markings, dimples, shapes of mounting surfaces, washers, that are concave or something to match the fasteners mounting surface, which ARP states that if the washer, if it uses a washer in its application, isn't the right way around, it can cause premature failure,  even if it was torqued up correctly with whatever lube is meant to be used

There is even talk about getting the bolts Xrayed to check the structure, one was about some builder getting multiple sets of bolts, having them Xrayed, and picking from those results

Nowadays identical "looking" fake parts, in identical looking fake packaging are everywhere, with all the markings and stuff, the only way you know they are not legit is Xray or when they fail

I assume if you don't want fake parts, and don't have a Xray machine handy, is to get them directly from ARP in the USofA, aftermarket rod and head bolts aren't something to take for granted 

Imagine building a big dollar build only to find you lunch it because of an inferior fake fixture let go 😫

[GTSBoy]

1 hour ago, The Bogan said:

Imagine building a big dollar build only to find you lunch it because of an inferior fake fixture let go 😫

Yes. This engine cost a very large amount of money to build. It's a Frankenstein necessitating lots of custom parts and lots of fabrication and fettling to get things like big ends to clear the bottom of the bore, etc etc. The rods and bolts were supplied by the owner. Hence why the rods were Chinesium. Some lessons need to be learned the (very, very) hard way, apparently.

I was aware of the stories going back about that far as well. I just wanted to see if the reality was as bad as the fear.