I purchased a set of MB rims from a 2002 500s and the lug bolts were 14mm by 2.67" long. My existing bolts are 12mm by 2.00" long.

I will buy 12mm by 2.60" long and here is my question about nstalling them.
Does the lug bolt keeps the wheel by compressing the rim with the conical shape or does the 12mm bolt has to have a bushing to make it more tight into the whole. The 14mm bolta from the 500 s did not fit tight into the rim but obviously tighter than the 12mm that I need to install.

Hope you guys understand my unclear question.

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Thanks, Juan

Maybe you need bolts that have a 14mm OD at the top portion that goes through the hole in the rim, but has the 12mm thread on the bottom part that threads into the hub. Maybe a wheel specialist can advise where you can get those or if they are even required. You might try calling the Tire Rack people who are a sponsor of the site.

Mike

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1998 C230 330,000 miles (currently dead of second failed EIS, yours will fail too, turning you into the dealer's personal human cash machine)
1988 F150 144,000 miles (leaks all the colors of the rainbow)
Previous stars: 1981 Brava 210,000 miles, 1978 128 150,000 miles, 1977 B200 Van 175,000 miles, 1972 Vega (great, if rusty, car), 1972 Celica, 1986.5 Supra

LUG NUTS: It is critical that the lug nut matches the thread diameter, pitch and seat, otherwise the installation will be improper, and may result in damage to your wheels and could cause a dangerous condition. The three basic types of lug nuts are: conical seat (60 degrees taper "acorn" and "bulge"), mag or shank style, and spherical or ball seat. Thread diameter refers to the diameter of the stud measured across the shank at the outer edges of the threads. Thread-pitch means either the number of threads per inch or if metric, the distance in millimeters between threads. The Seat means the area on the wheel where the lug nut will clamp down.

Warning

Never use a conical seat lug nut/bolt on a mag or shank type lug seat and never use a mag or shank type lug nut/bolt on a conical seat. The two are not compatible and if installed incorrectly, the lug nuts may lose torque, possibly resulting in wheel loss or contributing to damage or injury. In addition, spherical or ball seat lug nuts/bolt must be used with spherical or ball seats. ONLY USE THE TYPE OF LUG NUT/BOLT COMPATIBLE WITH THE TYPE OF LUG SEAT

My wheels came with acorn seats, and the oem ball lugnuts would not work correctly. Had to buy some from discount tire.

You will have to change hubs to use those wheels, as you MUST use 14mm bolts on wheels designed for them. 12mm bolts will come loose and the wheel will likely fall off. Not fun.

You may not be able to swap the hubs, either.

Peter

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1972 220D ?? miles
1988 300E 200,012
1987 300D Turbo killed 9/25/07, 275,000 miles
1985 Volvo 740 GLE Turobodiesel 218,000
1972 280 SE 4.5 165, 000 - It runs!