Will these work with my wheel spacers?

Yes. The 50mm length is specifically designed to accommodate spacers and deep-offset wheels. Thread engagement will remain safe as long as your total lug stud length allows at least three full threads past the base of the nut.

Do these need to be torqued differently than factory lug nuts?

Torque specifications don't change based on nut length—refer to your vehicle's service manual for the correct torque value. The extended length simply compensates for spacer thickness, not thread strength.

Can I mix these with my existing lug nuts?

Not recommended. Use the full set of twenty across all wheels to ensure consistent clamping force and appearance. Mixing lengths can create uneven load distribution.