I used to buy mine from Ebay but I can't find the supplier to let you know. They had good delivery and the prices were good. I'll keep looking.
Pretty sure this is the place. It was 3 years ago so no guarantee.
https://nutandboltshop.com.au/
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I used to buy mine from Ebay but I can't find the supplier to let you know. They had good delivery and the prices were good. I'll keep looking.
Pretty sure this is the place. It was 3 years ago so no guarantee.
https://nutandboltshop.com.au/
Gazza i used a piece of 100x75 for my draw bar. Got it from a mate who owns one of the brand name trailer places, he says thats plenty. Boats 2.6t. I used mostly gal bolts after checking the galvanic scale and price. Use plenty of a quality anti corrosion compound. Put a gal subframe under the i-beams. 6mths now, no sign of electroysis and just put 7000klm on it with no probs. Solid as a rock.
Mark
Quick search found these guys - they have prices displayed so you should be able to gauge whether you are getting a good price or not.
http://allthingsstainless.com.au/index.html
Personally I normally buy through "The Bolt Place" in Capalaba - prices have always seemed pretty good but they don't have a website - you would have to call them. As to the reaction between the metals - factor a tube of sealant into your build to keep the water from getting into the gaps around the bolts - won't stop it entirely but it will help. The main reasons they use Gal instead of stainless are price, strength and the fact that stainless has a nasty habit of galling when you do it up if it isn't lubricated as the tension comes on - usually to the point that the grinder is required to undo them. I would also be thinking about sealant between any surface and the alloy or between any alloy surfaces.
Gon thanks matw i will have good look when i get on the laptop
Fish i have already pre set my i beams as to take a 100x100mm draw bar i really wanted 110x100mm but they dont make that size that is the internal size of the i beam i will have to shim it
Scottar i had a quick look as im on mobile hard to see everything on tiny screen seen there prices much much cheaper than my local store
Yep, use a power tool to do up your nuts and galling is pretty certain to occur. After using the grinder a number of times I now lubricate the bolts but still take it easy. Gal is what I've seen on most ally trailers. Thats why you'll find steel bolts are used in your mostly ally motor, its not a cost cutting exercise, SS just causes too many problems with galvanic reaction.
So u guys reckon go with galvanized bolts instead?
Gal bolts where on my quintrex alloy trailer as well . Matt
I have a friend who runs a marine fabrication business that does work for many major boatbuilders.
His go-to for protecting against dissimilar metals corrosion is lanolin grease. A light smear on bolts, washers, nuts, rivets etc is all that is required.
Lanolin grease is dielectric. And natural, nothing nasty in there.
He no longer uses tef-gel, duralac (I was a advocate of that nasty yellow stuff previously, God it got everywhere!) or similar compounds.
I changed to lanolin a few years ago as he suggested and have found it works very well. Trailer bolts, stainless screws and bolts in my platey, everywhere.
I use the Ozspray lanolin.
Thanks i will replace the bolts, What i don't get is if i am meant to use gal bolts on the aluminium why do i need to separate the gal draw bar from the cross member and main rails etc..?
Good old sheeps wool grease, if it's good enough for breastfeeding feeding mothers it's got to be good for a trailer. If you have a fresh cut in steel or iron, rub in lanolin grease and it won't rust, amazing stuff. The pressure pack stuff is probably about 20% (I think im being generous) as good.
Gaz, because of dissimilar metals separation is still the best method.
you cant stop Electrolytic corrosion on aluminium trailers but it happens slower then with gal trailers
fasteners are a disposable system that wont last the life of the aluminium components
i dont see how lanolin has any durability unless your maintaining the trailer properly and re coating them
http://www.woolube.com.au/page17.html
sticks like .... to a blanket.
Thanks for the heads up i will pick up a tube of the Lanolin Woolube Grease when i can, struggling to make it to the steel shop had 1 hour today and for the rest of the week i have a heap of deliveries also trying to fix my other boat and put a new impeller in to it to take out for a fish