Devcon 10110 works fine.
Personally though, I think you need a FAST set and you need to also have the strength of normal Devcon/MarineTex. MOST fast-set epoxies are really weak, but the realyl strong stuff like we use in bedding is also so slow to set that it can be hard to get it to stay where you want it.
Devcon FasMetal (#10780) is your game.
It's an extremely advanced product, mixes like 10110 putty, but is about twice as thick. That results in it STAYING where you put it, where ProBed, 10110, MarineTex, etc. are all built to be semi-flowable.
Fasmetal is exactly what it says: 12,000+ PSI compressive strength (more than your stock) and I'ma tell you what, if you aren't done with it in 3-4 minutes, you're in trouble...if you need a little longer, usually you can refrigerate epoxies, but this stuff wouldn't be mixable at less than 60-degrees, I'd guess. It's the same gray/black color as Devcon, but can be dyed completely black if desired.
FasMetal is not suitable for bedding due to the relatively large shrinkage, and not enough open time, but it is extremely strong for repairs..it's strong enough to just MAKE some firearms parts from entirely.
I used it on a workbench to set the hickory block top into, such that the top was more-or-less "bedded" to the 4x4 & 6x6 lumber frame, which was in turn concrete anchored to the slab. It's never coming loose. If I sell the building, the bench goes with it.