Ok, the sticky on this forum links out to an article of how-tos
Mainsail, I've ordered from and he has the right stuff, and used, and the tape is great for bedding hardware (used it on my gudgeons). I actually also used it on my living quarters horse trailer (pronounced RV)... stuff is SUPER sticky, very flexible, and under pressure slowly squishes into place as it settles (remember to tighten 24 hours after initial bedding).
Here is the link, priced right, shipped fast, and it is REALLY high quality butyl tape:
Need Butyl Tape ?? Photo Gallery by Compass Marine at pbase.com
It's a sticky here for a reason
Linked here Bedding Deck Hardware With Butyl Tape