Download it here. The app is searchable in the Google Play Store under Sailboat Owners.
Sorry iPhone/iPad users, we are still waiting on Apple. :(Click the X in the upper right corner to make this go away
Your original post mentioned you tried a couple different size bolts. The mention of a bolt reminds me of this story. We were on a H270 in the middle of Haro Straight, between the US and Canada, when we heard a little tinkle sound of metal falling on fiberglass and immediately after the boom came loose and started thrashing about. The boom was attached to the gooseneck with a bolt and simple nut. If you can't find the proper pin with a drilled hole for a cotter pin or split ring, at least use a lock nut!