I picked up a little Beretta 418 .25acp pocket pistol, which came with two boogered screws holding on (original, decent shape) grips. I found a set of replacement screws, ordering and receiving them. Here's the problem: The thread is perfect, and the screw head is ideal. BUT, they're about 3/4s of a turn too long, impacting the grip safety. Being "clever" I applied some packaging tape under grips to make them "fatter" and solve the problem. No go, with three layers of tape -- I NEED to shorten the screws a tad.
My general practice is to screw screw into a nut, cut, file, or grind off excess -- and then unscrew it, to have a chance at my not having messed up threads and enable use. However, these are quite wee metric size of unknown threads per centimeter -- so that plan is not in my works.
I was thinking of chucking screw in a pin vise, and "polishing down" the tip with a stone? However, it seemed smart to check with one of the most knowledgeable persons on this site.
Any suggestions as my perhaps best process?
MUCH THANKS!
geo