Yes, the front screws are used with split lock washers. I got some allen bolts yesterday while on a job site, but they were too short for my comfort zone. Here's a trick if you can't find 11.5/12mm lengths, if you do find some too long (say 14mm, 16mm, etc), get two nuts and run them up the screw until you get the desired length (best to match it with the factory screws length). The first nut is to lock against the second nut to keep it from moveing. Saw/file off the excess threading. Now untighten the nuts some and remove them. As you remove them, they will clean and deburr the sawed portion of the bolt. If you still encounter some roughness on the bolt end, a slight rubbing on emory paper should remove any remaining burrs. Run a nut back on the bolt to check and test that the threads are clean (burr/junk free), then remove and you should be good to go. A word of extreme caution though. Look to make sure you place the new bolt in the correct angle to the threaded hole in the action. Then turn the bolt backwards until you feel the bolt click. This should tell you if the threads are alinged correctly with the hole. No need for excessive force here, just do it by 'feel'. Start turning the bolt forward,...Slowly!!!! If you feel any resistance, back the bolt out and inspect the begining of the threads to ensure that you aren't cross threading the hole. Most machined bolts of this type have a thin coating of paint(??, usually a black finish)) so some resistance will be normal at the beginning. Just take your time and don't be in a hurry!!!!! tjk
PS While at the dollar store, I picked up one of those lazer beam shooters with a flexible LED flash lite. They're small with a pocket clip on them, and they come in real handy for looking into small places like stock screw holes, barrels, etc.
