torque settings for keel bolts?

[Refueler]

TBH - I've been witness to keels being 'dropped - refitted' and only once did I see a Torque wrench.

Couple used the 'crushable washers' where a feeler gauge is used

But most were just bolted up without torque reading.

Its worth noting that not all boats actually have the nuts bearing only the GRP hull .... I have been present when a keel was 'dropped' after it had hit a concrete block at 7kts ... The Builders were called in to rebed the keel.

The keel bolts were through hull into steel tubes. The tubes being into wider 'support holes' where Sikaflex was injected to hold the tubes and provide 'cushioning' ... the nuts then with large washers were then run down to tighten and draw the keel into place. The large washers abutting the tubes and hull ...
Its an excellent system as it reduces risk of hull damage if keel strikes object. This boat hit object at 7kts during a race .. when we measured the keel - it was as near vertical still .. maybe 1 deg ! There was evidence of the washers and Sikaflex having taken the shock. Keel was dropped ... old Sikaflex dug out .. tubes reset - Sikaflex in and keel bolted up. One day job.

 

[ducked]

Incidentally, whatever may be assumed from the tables, I have yet to see a boatyard torque keel bolts/nuts without greasing them first

Good. I just meant (and said) that its a general assumption/practice, not that its necessarily the practice for keelbolts.

Whatever the general practice for keelbolts,if it were my boat, I would probably put polythene sheet and grease on them, and maybe aluminium anti-seize and PTFE thread tape on them as well.

I doubt I'd find a torque spec for that.

However, IIRC my keel bolts are glassed over, not necessarily a good thing, but it may mean I;ll never touch them.