Will these fit my factory wheel studs without modification?

These are M12 x 1.5 — verify your hub's thread pitch and stud diameter before ordering. If your vehicle uses a different metric or standard thread, these won't seat properly.

Does the adapter socket work with a standard torque wrench?

The adapter is included for installation and removal. Use your own torque wrench with the adapter — refer to your vehicle's service manual for the correct lug nut torque specification.

Can I use these on all four wheels?

You have 20 nuts in the set. Most vehicles need 4–5 per wheel depending on hub design. Verify your wheel count and stud pattern before checkout to ensure you have enough.