On my C&C30 Mk 1 I believe there are 4 keel bolts (maybe 5). What I'm sure of is they are 1" diameter and are torqued to 350 ft lbs.
To actually torque them to specs, you'll need a deep well 1-1/2" socket (if the bolts are 1") and a torque multiplier or one heluva big torque wrench. I actually bought a torque multiplier and the deep well socket to allow use of my 1/2" torque wrench with 3/4" adapters to fit the socket and torque multiplier. It cost me about $175 for the tools.
If I had it to do over again, I'd let the yard do it, although I don't think they had the tools anyway.
They really needed it. They were just beyond hand tight and the C&C smile required yearly patching. Since torquing to specs, the smile has not reappeared.
1977 C&C 30 Mk 1 hailing from Port Clinton, Ohio
Last edited by msmith10; 02-15-2012 at 08:00 PM.