you have got to be kidding me - that's not true at all.
the ones you get from tyre power are just fine.
the bolts only locate the wheel onto the hub. the hub is where all the load on the wheel goes NOT the wheel nuts, not the wheel studs.
the Rays ones are light, but i'm sure you can find a better place to lighten your wallet!!!
oh and any wheel thief can take the wheel regardless of what type of locker you have. all it takes is a chisel and hammer.
save yourself the $140 change, or give it to me and I'll spend it.