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Old 03-30-2015, 01:04 PM   #1
2 Rivet Member
Austin , Texas
Join Date: Feb 2014
Posts: 68
Oopsy - Used 1/8bit not #30 for Buck rivet

Well, it looks like a 1/8 drill bit makes a slightly bigger hole... slightly than a #30... I did drill some holes with a 1/8 about half on one panel.

I'm guessing it will be OK... and my wife will never know.

1. Should I be freaking out about now about using a 1/8 bit and not a #30? or just keep going using the #30 on the the remaining holes? I'm not sure what else I can do. I'm sure they will buck OK for a trailer... I'm not putting an airplane motor on it.

2. In other news... I'm going up to the next size on some vintage window frames. EG. I'm planning on using 5/32"Rivets. The only Drill bit I see for that is... 5/32" right?

3. I should rivet on the Jalousie windows right? not screw them on? naaaaaa... I mean it MIGHT be easier to service the windows with screws? but I shouldn't have to if the butyl tape and everything else is good.

Thanks Again!
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Old 03-30-2015, 01:29 PM   #2
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1960 33' Custom
Saskatoon , Saskatchewan
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Um, a #30 is bigger than a 1/8" bit, so I think you're perfectly safe. A #20 bit is ideal for a 5/32" rivet. If you stuff a 1/8" rivet in a 1/8" hole it just makes life hard and is not best practice.

Disclaimer: I can't count the number of times I've read on this forum that a #21 bit is better than a #20 for a 5/32" Olympic rivet. The manufacturer and most rivet vendors advises a #20 and that's good enough for me but to each their own.

Summary, you're good to go

1960 Sovereign 33' Pacific Railroad Custom
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Old 03-30-2015, 02:26 PM   #3
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1975 31' Sovereign
1980 31' Excella II
Sprung Leak , North Carolina
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Buck Rivet or Pop Rivet?

If it is a buck rivet not really a big deal, if it is a pop rivet... not really a big deal either. Though they will fit better in a #30 hole rather than the 1/8" one.

FWIW #30 is .1285" and 1/8" is .1250"... do the math

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Old 03-30-2015, 03:15 PM   #4
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Austin , Texas
Join Date: Feb 2014
Posts: 68
Thanks guys!

it's so weird. all the numbers say that the 1/8 should make the smaller hole but with the #30 I got from Aircraft spruce and the 1/8 milwaukee bit I have the #30 is actually smaller. I think I'll drill some more test holes... something is wonky here....
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