Images of the wheel pins. 304 stainless steel, M12x1.5 threads, rounded tip.

** The edges of the threads are machined off slightly so that the threads are less likely to get damaged and stuck in your wheel hub

Wheel pins in action on my E39: Wheel removal using the pins

Step 1: Raise your car a few inches. Then, remove one lug bolt closest to the 12 o'clock position and another one around 8 o'clock. I like to use a 17mm socket with a plastic sleave so as not to damage/scratch the wheel.

Step 2: Screw the wheel pins into the location where you just removed the two lug bolts. You can screw them all the way in, but do not tighten. For extra pre-caution, once they are all the way in, back them out by a 1/4 turn.

Step 3: Pull the wheel off. If you see rust around the wheel hub "lip" clean it off with a wire brush and apply some high temperature grease on the lip. This will help avoid the rust build up in the future. DO NOT GET ANY GREASE ON THE THREADS.

Wheel pins in action on my E39: Wheel installation using the pins

Step 1: Lightly screw on two wheel pins; one in the 12 o'clock position and another around 8 o'clock.

Step 2: Carefully install wheel onto the pins and push it onto the wheel hub. Make sure you get the hubcentric wheel on the "lip" of the hub.

Step 3: Screw on the bottom most lug bolt first. This helps stablize the wheel as it will tend to want to fall backwards from its weight. Then, install the other 2 lug bolts. Screw all the lug bolts on snug, but do not tigthen.

Step 4: Remove the wheel pins and install the last 2 lug bolts. Screw them on snug, but do not tighten.

Step 5: Now, lower the car to the ground. Using a torque wrench, tighten the lug bolts in a star shape pattern to 110Nm. As an extra pre-caution, check the lug bolt torque again after the 1st short drive.