Wikipedia can make anybody look smart.
Genmar is right, though. The difference is not that great. If you sail in salt water, rinse your boat afterward. It will last much longer.
If you primarily sail in fresh water, there is no problem.
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| Rivits- sizes for crossbars and cheek blocks http://www.hobie.com/au/en/forums/viewtopic.php?f=14&t=9325 |
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| Author: | abbman [ Tue May 06, 2008 6:40 am ] |
| Post subject: | Rivits- sizes for crossbars and cheek blocks |
Hello everyone, I plan on getting my new to me hulls and frame glued over the weekend. I was wondering what size rivits I will need for the crossbars and for the cheek blocks that go on the corner castings for my jib traveler setup. Can I order these from Hobie or can I find them at a hardware store? I assume they must be stainless steel. Any help will be much appreciated. |
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| Author: | NCSUtrey [ Tue May 06, 2008 6:54 am ] |
| Post subject: | Stuffs |
Rivets are 3/16" stainless, and you can get them from any Fastenal location. Also, James, give me a call. Trey (919)-302-0880 |
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| Author: | sunjammers [ Tue May 06, 2008 6:54 am ] |
| Post subject: | |
You will want to use a monel rivet, they are available through your dealer. IN the back of the parts catalog there is a rivet guide that lets you know how many and which rivets go where. Good luck let me know if I can do anything to help you out! |
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| Author: | abbman [ Tue May 06, 2008 11:02 am ] |
| Post subject: | |
Thanks guys, I will look into the monel rivet. Is there any big difference between those and stainless, especially since the boat is getting glued? If I have to order from a dealer, the parts may not get here by Friday, which is when I plan on doing the gluing. Long story short, the boat is in Wilmington, I am in Fayetteville, and I am trying to get both the keels redone, boat glued, and components moved from my 83' to my 86' before the "Sail the Bay" VA beach regatta in two weekends. So, if there isn't a big difference the stainless would probably be easier to aquire in the time I have. Trey, now that I see your post I remember you giving me a call the other day. I will call you later this afternoon. |
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| Author: | MBounds [ Tue May 06, 2008 12:54 pm ] |
| Post subject: | |
Monel is a trademark (of Special Metals Corporation) for a series of stainless metal alloys, primarily composed of nickel (up to 67%) and copper, with some iron and other trace elements. Monel is very difficult to machine as it work-hardens instantly with heat. It is resistant to corrosion and acids, and some alloys can withstand a fire in pure oxygen. It is commonly used in applications with highly corrosive conditions. Small additions of aluminium and titanium form an alloy with the same corrosion resistance but with much greater strength. Monel is typically much more expensive than stainless steel. Monel vs. Stainless Steel rivets The difference is not so much in the strength, it's in the corrosion resistance. When you put dissimilar metals together with seawater, you create a battery. The metal that's lower in the galvanic series (aluminum) gets eaten away. Monel is lower in the galvanic series than stainless steel, so the corrosion potential is less. |
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| Author: | abbman [ Tue May 06, 2008 5:40 pm ] |
| Post subject: | |
Matt, you never cease to amaze me with how much stuff you know. I await your "everything you want to know about a hobie" book on shelves soon. You already have the editor status. But seriously, thanks for the detail about the rivits. If I can't find the monel rivits in time, could I use stainless for this weekend and then replace them later? I know it would be a waste of money, but at this point I'm really trying to get two boats that are now more or less in pieces into one that is ready for the VA Beach regatta. I suppose I could wait to do the gluing, but the boat is really loose, and the right rear corner casting is cracked and needs to be replaced. I figure why not go ahead and kill two birds with one stone and get it glued while it's apart. Another thought, If I were to use the stainles rivets and epoxy the boat, how easy will it be to get them out afterwards to replace? |
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| Author: | Genmar Star [ Tue May 06, 2008 6:33 pm ] |
| Post subject: | |
James the stainless steel rivets will be fine. Galvanic corrosion is much more of an issue on dissimilar metals that are under water all of the time. (salt water). For example on my cruising sailboat I have sacraficial zinc attached to my prop shaft so if there is any corrosion from dissimiliar metals(bronze thru-hulls, stainless shaft) it will eat the zinc . Get some sleep . Be on time. Trey I picked up that boat for you. Phone me when you get back. Good luck in the Tybee. |
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| Author: | abbman [ Tue May 06, 2008 6:45 pm ] |
| Post subject: | |
Thanks Genmar, I will get the stainless rivets if that is the case, or if they have monel at the fastener shop I'll go ahead and get them. I will be on time this weekend. I'm shooting for 6:30, Friday. I get off work at 3 more or less. I'll be packed up on Thursday and ready to roll. |
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| Author: | MBounds [ Wed May 07, 2008 4:14 am ] |
| Post subject: | |
Wikipedia can make anybody look smart.
Genmar is right, though. The difference is not that great. If you sail in salt water, rinse your boat afterward. It will last much longer. If you primarily sail in fresh water, there is no problem. |
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