1/16", Bo.

Thanks, man

If you can get a 1/16" to fit use it. Otherwise it's a 1.5 mm.

[quote="Sheldon Dingwall":3ge2k9x7]If you can get a 1/16" to fit use it. Otherwise it's a 1.5 mm.[/quote:3ge2k9x7] I sized it with my vintage Badass 1/16th Allen wrench. It must have lost enough metal through the years that it fits 1.5 mm now.

Luckily I ordered both an imperial and a metric allen key set a few days ago.. So at least one will fit

I think the 1/16" will work just fine. 1/16" = 1.5875mm. The hex slot in the bolt usually isn't THAT precise. I work at a hydraulic shop, I have a conversion chart taped on my desk directly behind the computer screen I'm using right now.