[Ant]

I had some one piece hubs 4140 machined for my car so I could have the Knock off style. Have used this system with a race cobra with no safety wire and never had a problem, if they are done with a copper or lead hammer until the hammer note changes or thunk sounds different they are pretty good, lead is better as copper marks the knock-off more. If you are concerned there are large nuts available and need tightening with a torque wrench like the race guys do!