Ummm... Red Loktite might be too much, Blue would be fine. I understand you don't want the pin to fall out, but a framing nail may wear out before the CVD does. Then how do you get the grub screw out? Nice that you figured out a way to fix it. But a better material for CVD pins is "music wire". Thin hardened steel rod you can buy at the hobby store for just a few bucks. But you need just the right size. If you have a micrometer, you can measure the stock pins, then buy the appropriate size music wire. You'll have enough material to make CVD pins for a lifetime. And they'll be better than stock. Otherwise, you'll have to take your CVD to the store and test fit until you find the size you need.