Spyderlock Wheels require the use of an acorn style lug nut with a 60-degree tapered seat.  A spline style lug nut kit will give you added security against theft by undesirables.  The kit comes complete with spline lug nuts, spline key and spare valve stems.  The purchase of a lug nut kit means your beadlocks will arrive to your front door with everything you need to mount and install them on your vehicle.