I don't have a specific style in mind, just looking for something a little more refined than the stock steering nut/bolt situation. The thread seems finer than 1.5 pitch, so I went with a 1 pitch and got about 1.5 turns before it bound up. It might be 1.5 pitch, but I really have a feeling it's .75 since bmw has/had a hard-on for weird proprietary specs for almost everything.. would love to learn from someone w the ability to accurately measure it