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Source rivets for attaching SS exit block to Aluminium mast


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Be careful of electrolysis between SS and aluminium and other electrolysis. 

 

Here's my notes from trying to find stuff a few months ago in Auckland

 

nuts and bolts fasteners

Bolt Shop  09 441 9425
191B or 2 / 191 Archers Rd Glenfield Auckland 0629
only has M6 aluminium bolts

Anzor Fasteners Ltd  09 444 4697 101 Diana Dve Glenfield Auckland
 no aluminium bolts

EDL Fasteners Ltd  no aluminium bolts
Head Office
70 Richard Pearse Drive
Mangere, Auckland
Phone: 09 257 5959
Fax: 09 257 5844
info@edlfast.co.nz
2/65 Ellice Road Glenfield Auckland   09 444 1894

ECKO Staples & Nails   09 527 7765  no aluminium bolts
Unit 3 88 Elizabeth Knox Pl Auckland

Eclipse Fasteners Ltd 09 272 8069  
13 Stonedon Dve E Tamaki2013 Auckland East Tamaki

Blacks Fasteners Ltd 09 589 1036   
930C Great South Road1061 Auckland Penrose

Aluminium Window Services Ltd 09 444 7650
145 Target Road0629 Auckland Glenfield

Auckland Engineering Supplies AES
358 0910
154 Beaumont St Westhaven Auckland 1010
 

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Aluminium bolts ? seriously ?

 

Ullrich have monel rivets in a few sizes , be prepared to be shocked at the price per unit , but of course its cheap insurance.

You can make washers to isolate the SS from the ali out of ice cream containers or even use tap washers if you have the room.

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Aluminium bolts ? seriously ?

 

Ullrich have monel rivets in a few sizes , be prepared to be shocked at the price per unit , but of course its cheap insurance.

You can make washers to isolate the SS from the ali out of ice cream containers or even use tap washers if you have the room.

I'm new to this game but knew about electrolysis problem. Task was to attach plastic tube rub rail all around the gunnels of my aluminium dinghy to stop it scratching the big boat. In the end I used SS self-tapping screws.  I thought of rivets but didn't know how to use them with washers or whatever to avoid squashing the plastic tubing too much. Keen to know what I could have done.

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Use Monel rivets, it's a more inert metal.

 

If you want rivets to pull not as much as they can you can make a small groove in the nail (the bit that runs through the rivet) with a small file or similar. That will weaken it so it wont pull in as hard. You can push the nail out, groove it then put it back in.... unless it's a blind rivet of course. Some experimenting wit the groove size maybe required if you want to be more specific with the resulting loads.

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