Will these fit my wheel studs without modification?

These are M12 x 1.5 thread — verify your vehicle uses that exact spec. The 60mm shank is designed for wheels mounted with spacers or deep-dish setups; on stock wheels they may sit proud of the wheel face. Check your application before purchase.

Do the locking nuts work the same way as the standard ones?

The four locking nuts have the same thread and shank length as the standard 12 nuts. They use an internal locking mechanism to resist vibration and theft — install them on your most-exposed wheel positions for best security.

What torque spec should I use when installing?

Refer to your vehicle's service manual for the correct torque specification. Over-tightening aluminum lug nuts can strip threads; an impact wrench is not recommended — use a hand wrench or breaker bar with a torque wrench to finish.