In article ,
DSK wrote:

Cut a slightly larger than hand sized round hole in the side of the seat
under the thwart, where you can reach the underside of the screws. Put
backing plate under the screws- a small piece of Lexan does great.
Another material I like is HDPL cutting board... buy a kitchen cutting
board at Wal-Mart for $4.99 and get a whole set of backing plates.
Doesn't rot, plenty strong, and self tapping, too.

Now to seal up the access hole- if you want to do it properly, and get
back in there at some future date, get a pair of access hand-hole plate
from one of the marine suppliers. Another option is to save the cut-out
part and refiberglass it into place with a little resin & fiberglass
tape from Home Depot.

Fresh Breezes- Doug King


In addition, they can be through-bolted, which should last pretty much
forever.

--
Jere Lull
Xan-a-Deux ('73 Tanzer 28 #4 out of Tolchester, MD)
Xan's Pages: http://members.dca.net/jerelull/X-Main.html
Our BVI FAQs (290+ pics) http://homepage.mac.com/jerelull/BVI/