Originally Posted By Old_Town:
I tried applying a light coat of nickel anti-sieze on the bolt tail to facilitate the stubborn carbon that builds up there. Although it did seem to help prevent the buildup somewhat I deemed it not worth the extra effort. As far as using it as a lube? No, it has no real lubricating properties.
The carbon build up on the bolt tail won't hurt anything. You don't have to scrape it off. Leave it alone for a while and you'll see that the carbon "growth" is self-limiting.