Loctite is fine, but be aware it can make removing the screw very difficult. Benchmade has used Locktite at times in the past for these screws, but the difficulty was that with the very small screw size they were not able to consistently apply the correct amount, a minute drop, so owners would strip the head out of the screw trying to unscrew them. It's something of a no win situation. Use blue grade Loctite only and only the very smallest amount. If any squishes out, you used too much, remove the screw, clean and try again.