I completley removed my keel and reseated it in a bed of epoxy, and glassed it right onto the hull. All bolts replaced with stainless. I had some serious concerns with my keel as the rear bolts had been replaced with galvanized ones. This caused the bolt holes for the 2 back bolts to disintegrate ! I was very dismayed and thought I may even have to throw the boat away. After discussing the problem with Steve Seal and a few local boatyards. We came to realise that the flange that holds the keel to boat is large by todays standards. And the bolts are indeed larger than most. I was able to saw off the damaged portion and drill new holes for the rear bolts. That was in 2003, happy to say that I have been sailing it since then and it is still solid as a rock. I have lots of pictures. If you want I can send some.

::
:: :: I have been replacing just the rusty nuts and washers on
:: :: my S22's keel bolts. I have come to believe the 8-3/4"
:: :: steel keel bolts are more than adequate for the Santana
:: :: 22 . First of all - please read the Pearson 26 keel bolt
:: :: article in the prior link. Notice that the P26 keel is
:: :: 1000 lbs heavier than a S22's Keel and the P26 uses just
:: :: 8-5/8" bolts.
::
:: :: pi= 3.141593
::
:: :: Keel bolt Area =pi * r^2
::
:: :: Diameter Radius Area
::
:: :: P26 D=5/8 R=5/16 A=0.061328
::
:: :: S22 D=3/4 R=3/8 A=0.147188
:: ::
:: :: The surface area of 3/4" bolt is over twice the area of
:: :: the 5/8" bolt. The strength of the bolt must correlate
:: :: with this surface area. So S22s owners have keel bolts
:: :: with over twice the strength holding half the keel
:: :: weight. Seems like the S22 keel structure is a tad over
:: :: built ;^)