In my previous post describing my eye bolt probable solution, I was unable to find the exact bolt that I had calculated using the drill and tap chart. I went back to the website and this time was able to go right to the sizes I wanted, I’m not sure what was different but I’m happy they worked out. Here’s the drill and tap chart as found on http://www.shender4.com/. Note that the items highlighted in a pinkish color are the sizes provided and recommended by the well-known Catalina parts dealer. You will notice that the drill size is under the aluminum brass and plastics. It seems to me we should be using the drill bit size for iron so that’s what I’m going to do on the new eyebolt. The colors in yellow indicate the eyebolt size and thread and the drill bit size.
First the tap
then the drill bit
and last, the eyebolt
Just to remind you, the standard bolt they use looks like this, so there will be some differences in the way I hook it to the winch cable.
Total cost at http://www.mcmaster.com/ is 37.46 plus shipping.
Total cost at the well known Catalina parts dealer is
$56.20 – Tap
$14.95 – Cobalt drill bit
$16.00 – Eyebolt
$tingySailor should be proud of me ;^)