M_Boats: Harken windward sheeting traveler

I am installing a Harken windward sheeting traveler and track, and found that the Harken track mounts with #12 bolts, which look to be about half the diameter of the bolts for the OEM track. Since others have installed this track, I suppose that the bolt size is OK, but I wanted to ask advice as to whether I can use the old holes without filling them in and drilling a smaller size hole. Bob Eeg said that the old holes (which look fine) could be used as is, but that was assuming re-using the original bolts. Anybody have any ideas about what I should do? Thanks in advance, knowing that help will be on the way, Rick M17 #633 Lynne L