That is the BOE solution and those are NAS 7/16 hardware. It is plenty strong and is on my TT2 race car with 275mm A7s and the biggest wing you can fit. The rod ends themselves can develop play, but if you are asking this its not a big deal to you.
Sure looks like the BOE solution to me as well. Note that if so those bolts/nuts are no longer a metric size, good to know when you torque them again.