Bolts. I have an application where I need some more clamping force (currently got 12.9 capscrews), can't find any 10.9's, but have a load of B16's lying around. Any idea what B16 is, in terms of bolts? I'm pretty sure it's some kind of metallurgical standard, definitely not a size or thread pitch or anything like that. Would I be able to compare B16 to, say, 12.9 or 10.9, or would that be apples and oranges? Help!