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Old 03-25-2019, 01:53 AM   #1
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Anyone ever fill seat bolt floor holes with these?

I welded up all the small rivet holes used to hold down the metal flashing for the center walk way rubber, but don't want to weld up the larger 5/16" seat bolt holes. I'm not skilled enough to fill that big of a hole without leaving an inch long metal booger hanging under the floor. Plus I'd surely negate any galvanizing properties in the process. I was thinking about using the fasteners pictured below (as long as they're a snug fit) dipped in sealer, then maybe cover them in a little flashing tape. Too brittle maybe? That was my first thought, but they are used and hold up well in auto/ATV bumpers & fairings. Anyone seen them used for this before? Fasteners.JPG
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Old 03-25-2019, 09:01 AM   #2
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I hadn't considered these, but am definitely doing so now. I was going to simply put a gob of sealer over the holes, but this would definitely be a bit better, I would think! They are plastic so no reactions with the galvanized steel, either. Good thinking, in my mind!

I'm sure the best way to tackle is to patch with more galvanized steel, but then you have questions about the best way to attach the patch. Some sealers react with the galvanized steel, and welding opens up a can of worms on the galvanized steel as well. I'm not a chemist or welder, so I'll pick the easy route you just identified, I think!

Chris
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Old 03-25-2019, 11:24 AM   #3
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Originally Posted by farok View Post
I'm not a chemist or welder, so I'll pick the easy route you just identified, I think!

Chris
Hi Chris- I have both types shown in the photo coming this week. I'm going to use them for sure if they are a snug fit. I'll let you know how it works and post a couple photos. I need to research a bit more before I make a decision on the sealer. Some of the trusted folks on here say an OEM automotive seam sealer is the way to go...

I reviewed your build thread, we're right at the same stage. Looking forward to watching yours.

Eric
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Old 03-25-2019, 11:52 AM   #4
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The only downside to those push plugs is the cost. They run anywhere from $.10-$.25. I'd rather just glue a penny over the hole.
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Old 03-25-2019, 12:44 PM   #5
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The only downside to those push plugs is the cost. They run anywhere from $.10-$.25. I'd rather just glue a penny over the hole.
I get that for sure o1marc...I've seen packs of just a few for several dollars at the local auto parts store, but found what's in the photo for less than $.10. I am sooo tempted to do the penny thing...it's easy, cheap & the perfect size. But I worry a tiny bit about the dissimilar metal thing...even with a coat or two of good paint and a sealer. I don't mind spending the little extra for piece of mind.

If the fasteners I ordered don't fit well I'll default to the penny thing...or maybe plastic funny money!
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Old 03-25-2019, 01:10 PM   #6
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I get that for sure o1marc...I've seen packs of just a few for several dollars at the local auto parts store, but found what's in the photo for less than $.10. I am sooo tempted to do the penny thing...it's easy, cheap & the perfect size. But I worry a tiny bit about the dissimilar metal thing...even with a coat or two of good paint and a sealer. I don't mind spending the little extra for piece of mind.

If the fasteners I ordered don't fit well I'll default to the penny thing...or maybe plastic funny money!
An electrolyte is a substance that produces an electrically conducting solution when dissolved in a polar solvent, such as water. ... A substance that dissociates into ions in solution acquires the capacity to conduct electricity. Sodium, potassium, chloride, calcium, magnesium, and phosphate are examples of electrolytes.
If done carefully the penny actually won't touch the metal, the layer of adhesive will insulated it. Galvanic corrosion is often brought up here and I think it is not an issue. The 2 metals then need an electrolyte to complete the process, this doesn't happen often in our application. Much ado about nothing.


An electrolyte is a substance that produces an electrically conducting solution when dissolved in a polar solvent, such as water. ... A substance that dissociates into ions in solution acquires the capacity to conduct electricity. Sodium, potassium, chloride, calcium, magnesium, and phosphate are examples of electrolytes. If you do all your priming and paint on the floor before covering the holes there is insulation between the coin and the metal floor.
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Old 03-29-2019, 12:19 AM   #7
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I'm not a chemist or welder, so I'll pick the easy route you just identified, I think!
So my fasteners came in. The push style in the photo I attached earlier in the thread are too loose in my opinion, but the screw type fit snug as a bug into a 5/16" hole. The collar part slides into the holes with a little push of the thumb...once you turn the screw in, they are SOLID. The profile above deck is just a hair thicker than a nickel. I'm going to use them in conjunction with seam sealer & call it good. They are pretty sturdy little units too. I don't think they'd break easily. $.07 a piece on amazon.
IMG_2873.jpg
https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
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Old 03-29-2019, 10:02 AM   #8
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Excellent info - thanks!!
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