On Fri, 25 Jul 2008 19:50:36 -0500, Brian Whatcott
wrote:

On Fri, 25 Jul 2008 07:13:26 +0700, Bruce in Bangkok
wrote:


When you think about it the two washers and bolt idea is perfectly
sound. I have a "ground plate" bolted to the side of my fiberglass
boat using exactly the same technique.
//
Bruce-in-Bangkok

In my view, less than perfectly sound. The problem is a glancing
contact that wipes off the seal and bolt - when you least need the
added danger.

Brian W


Maybe "your view" but all my thru-hulls are essentially two washers
and sealant and the radio ground plate is essentially a large plate
with four bolts through it, with sealant. Given that the boat was
built in 1971 and hasn't lost a thru-hull or the ground plate yet just
how hazardous is it, really.

In addition, it is common practice for steel hull tugs and fishing
boats to plug holes with a wooden plug. You don't really think a
working boat runs for the ship yard just because it has a small leak
do you?

Bruce-in-Bangkok
(correct Address is bpaige125atgmaildotcom)