Originally Posted by
hamster
I quoted the weight. Is 22 g for 6 M5x17 bolts more typical of steel or titanium? My stem came stock with the bike, all it says is "Cannondale C2".
Well a bit of math can help. These will be low estimates because they don't factor in the bolt heads. I bet the steel bolt heads weigh about a gram, and the Ti heads weigh about .56g. 5x17 cylinder would have a volume of about .334cm cubed. Density of Ti is about 4.5g/cm cubed, steel is 7.9g/cm cubed. One of the steel bolts would weigh ~2.64g, not counting the bolt head. A Ti bolt would be about, 1.5g head not included.
6 steel bolts would weigh 15.9g, 6 Ti bolts would weigh 9g.
Add in my guess for the heads, and you have 21.9g for 6 steel bolts and 12.4g for 6 Ti bolts.
You have steel bolts.