Yes, all the dbm front action screws are the same length. It needs to be a little bit shorter than what the 12fv front action screw is down to where the threads start.

(cut a fully threaded screw to the length of 12fv screw up to the threads and grind it down a bit to clean the cut edge of the threads.) If it works, it works. If too long, it will interfere with the bolt. Grind some more.