Most BMWs use 12 x 1.5 moderate length wheels bolts with a 17 mm hex head. They have some nice black one for roughly 4 bucks apiece at full tilt retail. They are much less via mail order.
I don't think the Elise wheels are much of a theft target and don't like the spline and wheel lock set up. For staying stock, maybe an all-spline approach would work well. Some of the spline bolts have a crummy fit with the supplied tool. The tool can be tough to remove.
It turns out that E30/E36 and other BMW wheel bolts are a perfect match. Same underhead shape and angle, same thread, same grade of metal, same length, better finish.
Here is a black one compared to a stock spline drive bolt.
They fit fine and a standard 17 mm socket clears everything no problem.
I don't think the Elise wheels are much of a theft target and don't like the spline and wheel lock set up. For staying stock, maybe an all-spline approach would work well. Some of the spline bolts have a crummy fit with the supplied tool. The tool can be tough to remove.
It turns out that E30/E36 and other BMW wheel bolts are a perfect match. Same underhead shape and angle, same thread, same grade of metal, same length, better finish.
Here is a black one compared to a stock spline drive bolt.


They fit fine and a standard 17 mm socket clears everything no problem.