[C320-list] Burgee halyard

[Utility Email]

Yes. You should try electrically isolate stainless steel and aluminum which are dissimilar metals. I use nylon washers between mating surfaces and Lanocote on threads and rivet body's used as fasteners. 

Dave

On Jan 25, 2013, at 4:01 PM, dprudden <dprudden at comcast.net> wrote:

> Does it matter that its a stainless strap?
> 
> David Prudden
> #787
> 
> Sent from my iPhone
> 
> On Jan 25, 2013, at 6:32 PM, JJ Morrison <sail-ability at sympatico.ca> wrote:
> 
>> 
>> 
>> Actually the Al pop rivets are the answer; I've used these before and the material match makes sense.CheersJohnM1999#574
>> 
>>> From: wupdike at hotmail.com
>>> To: C320-List at Catalina320.com
>>> Date: Fri, 25 Jan 2013 18:27:03 -0500
>>> Subject: Re: [C320-list] Burgee halyard
>>> 
>>> Why use SS in aluminum?  Wouldn't aluminum screws be the better choice?
>>> 
>>> -----Original Message-----
>>> From: Utility Email [mailto:kswanson123 at comcast.net] 
>>> Sent: Friday, January 25, 2013 1:30 PM
>>> To: C320-List at Catalina320.com
>>> Subject: Re: [C320-list] Burgee halyard
>>> 
>>> I installed my eye strap and small block with two SS tapped screws to the
>>> underside of the aluminum spreader. I did not want to drill one larger hole
>>> through the entire spreader tip and bottom. We have a flag off of one and
>>> our Davis radar reflector off of the other one. Plenty of capacity without
>>> placing an eyebolt through the spreader top and bottom. 
>>> 
>>> Dave
>>> 
>>> S/V Emily Ann
>>> 2007 C320 MK II
>>> No.1107
>>> Mukilteo, Washington
>>> 
>>> On Jan 23, 2013, at 7:18 PM, Utility Email <kswanson123 at comcast.net> wrote:
>>> 
>>>> I have burgee halyard installed on each lower spreader.  I use one for a
>>> courtesy flag and the other for a radar reflector.  One burgee halyard came
>>> with the boat from the factory, the other I installed.  Both with eye straps
>>> tapped and screwed into the underside of the lower spreader with small
>>> blocks integrally attached to the eye strap.  I used ss screws tapped into
>>> the underside of the lower aluminum spreader.  I coated the threads with
>>> Lanocote to help prevent eletrolosis between the ss screws and the tapped
>>> holes in the aluminum spreader.  I also used nonconductive nylon washers
>>> between the eyestrap and the aluminum spreader.  The factory installed
>>> eyestrap and block are attached to the spreader with ss rivets.
>>>> 
>>>> Dave
>>>> 
>>>> David Swanson
>>>> S/V Emily Ann
>>>> 2007 C320 MK II, No. 1107
>>>> Mukilteo, WA 
>>>> 
>>>> On Jan 22, 2013, at 3:37 PM, dprudden wrote:
>>>> 
>>>>> For anyone who has a burgee halyard on the starboard lower
>>> spreader-should I use a through-bolt for the halyard block or an eye strap
>>> screwed into the spreader?
>>>>> 
>>>>> Thanks,
>>>>> David Prudden
>>>>> #787
>>>>> 
>>>>> Sent from my iPhone
>>