So, did my research - gotta be grade 8, can't use stainless due to the torque involved and 'cold fusion' of the bolt with the clamp. St Paul HD only appears to stock the lower pinch bolt (the ones that hold the front wheel on). Got some black oxide ones that meet the grade 8 minimum but....they're rusting a bit. No beuno.

Where can I source a grade 8, stainless type bolt like this? I went to one Harley dealer (god, I hate stepping into those places) and they don't even show that the bolt exists. It's the one that takes a 1/4" hex, not the 5/16".

Thanks.