Will these work with my wheel spacers?

The 44mm extended length is designed to clear spacers and thicker wheel designs. Measure your total stack-up (wheel thickness + spacer depth) and compare against the 44mm length — you should have adequate thread engagement with room to spare.

Do I need to grease or prep these before installation?

No prep needed. Install them dry. If you're reusing wheels on different hubs or dealing with corrosion on the studs, clean the stud threads first — dirty threads can cause uneven seating.

What thread pattern is this?

M12x1.5 is the metric standard for most vehicles. Verify your vehicle's lug stud size before ordering — this is not a universal fit. Measure your current lug nut or check your owner's manual if unsure.