When I refurbished my H17, I was shocked when I removed the Starboard Fore and Aft Crossbeam Bolts and Anchor Bars, as "both" Anchor Bars (the anchor bars are what fits in the hull lip and then the crossbeam bolts screws into)...where was I??,, yeah, both anchor bars were bent and cracked on one side where the threaed hole is.....so it would have only been time when one or both crossbeam bolts would have given out.

HINT...during your Winter maintenance, remove and check the Anchor bars....there are 4 on each hull...1 for each crossbeam, 1 for each mainstay and 1 for the forestay...so check them out closely.

Nige