Do these lug nuts work with my factory wheels?

M12 x 1.25 is a common metric size for most vehicles. Verify your current lug nut thread size before ordering — if your factory lugs are M12 x 1.25, these bolt straight on as a direct swap.

Can I use all 4 locking lugs on one wheel or do I need to split them?

You get 4 locks total for a 4-wheel setup — one lock per wheel. If you run 5-lug wheels, you'd have three standard lugs and one lock per wheel, or adjust distribution based on your wheel count.

Do I need to tighten these to a specific torque spec?

Refer to your vehicle's service manual for the correct torque specification — it varies by make and model. Use a calibrated torque wrench to ensure all lugs seat evenly and safely.