Will these work with my OEM wheel studs?

These are M12x1.5 thread pitch — verify your vehicle's stud size before ordering. If your studs are M12x1.5, these nuts will thread on. Extended length means they'll sit higher on the stud than factory nuts, which is the whole point for spacer and wide-offset applications.

How tight should I torque these?

Refer to your vehicle's service manual for the correct torque spec. Lug nut torque varies by manufacturer and stud design. Over-tightening aluminum nuts can cause stripping — stick to factory specs and use a torque wrench.

Do the locking collars come pre-assembled?

The locks ship separate from the nuts. You'll install the collar onto the nut before threading onto the stud. It's a quick job, but plan a few extra minutes on your first wheel change to get familiar with the assembly sequence.