This is flat-out the best stuck-fastener lubricant I have ever used. Period. You name it, I have tried it. Kroil comes in these little squirt-top cans or in spray cans. They have versions with silicone and versions with graphite. Whichever one you choose for your particular application, Kroil is the best. It also smells better than any other product out there. (If you wan't to buy some PB Blaster, I can make you a deal on about half a case. I don't even bother with it anymore.)