Wheel locknut keys

Would appreciate your assistance. I need to obtain two spare wheel locknut keys. I do have one with me.
Have read that such spares could be obtained from Toyota, for which I need a paper giving the original vehicle key data (which now I don't have), or Amazon, or maybe some mechanics/locksmiths. There are also aftermarket suppliers but there is a cautionary note that their products may cause fit-up problems down the road. Could you comment on the most effective way to proceed here?
Thank you.

 

Does the lock you have, have a code on it? I thought they usually do. That should be the number to get a replacement. Otherwise you can buy a whole new set.

 

The dealer should have a master set, Providing your ownership information along with your OEM wheel lock key (If this was a set that was dealer installed) the Dealer should be able to verify and order the additional one you need.

This is just based off of how Infiniti did it back when I worked for them. Slightly assuming Toyota would/may be similar.

 

Thanks, both!