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Topic: Bulkhead bolt hole covers (Read 724 times) previous topic - next topic

Bulkhead bolt hole covers

Anyone have a source for the little round plugs that close up the holes giving access to the bulkhead bolts?
1987 Grand Villa ORED
2001 U320 4010

Not all that wander are lost... but I often am.

Re: Bulkhead bolt hole covers

Reply #1 –
 I have some, if you want them.  I bought them and went a different direction.
Matt B
1998 u-320

Re: Bulkhead bolt hole covers

Reply #3 –
This Heyco hole plug is what the factory used for the through bolts on my bulkhead:
https://www.mouser.com/ProductDetail/Heyco/2763?qs=knCJ1Q0yGodixvh6NX7Yfw%3D%3D
Many on this forum have advised the liquid tite rubber plug in the previous reply.  I bought those and find them difficult to install due to the panel thickness where the plastic plugs allow for a greater range of panel thickness.  Some are concerned about water entering these plugs but I doubt that water splashing up could get past the plastic plugs and I like the idea that not being liquid tite there is a better chance they will allow water to drain out of the basement floor should it find it's way in there (think fresh tank overflow).  In any case the factory installed plugs on my basement floor show no signs of moisture intrusion.  I will use those when I get around to replacing all of the Rolok bolts on my bulkheads.
George Mann
2002 U320 #5934
2017 Rubicon
2013 BMW GS
Waterford MI

Re: Bulkhead bolt hole covers

Reply #4 –
Quote from: oldmattb –
Heyco 3837 KOS-LT 1 Black Liquid Tight Knock-Out Seal (Package of 10):...

Probably cheaper than the USPS cost from here, If you have Prime.

These are a far better choice, as waterproof.

If using the "factory" plugs, you will want to verify that they bedded them in sealant (any polysulfide)
As an Amazon Associate Foretravel Owners' Forum earns from qualifying purchases.
Brett Wolfe
EX: 1993 U240
Moderator, ForeForum 2001-
Moderator Diesel RV Club 2002-
Moderator, FMCA Forum 2009-2020
Chairman FMCA Technical Advisory Committee 2011-2020

Re: Bulkhead bolt hole covers

Reply #5 –
Quote from: oldmattb –
Heyco 3837 KOS-LT 1 Black Liquid Tight Knock-Out Seal (Package of 10):...

Probably cheaper than the USPS cost from here, If you have Prime.
Thanks, I'll give these a try. A 1.37" mounting hole seems smaller than what I have though... will get under there today and measure first.
As an Amazon Associate Foretravel Owners' Forum earns from qualifying purchases.
1987 Grand Villa ORED
2001 U320 4010

Not all that wander are lost... but I often am.

Re: Bulkhead bolt hole covers

Reply #6 –
Mine are 1.75" in diameter.  When I was speaking with Foretravel, they indicated this was the size that they expected. FOT charges $0.85 for the hole covers. I'm going to try to source water tight ones first though.
1987 Grand Villa ORED
2001 U320 4010

Not all that wander are lost... but I often am.

Re: Bulkhead bolt hole covers

Reply #7 –
With sealant, those may be just fine.  The waterproof Heyco plugs many of us have used are smaller.
Brett Wolfe
EX: 1993 U240
Moderator, ForeForum 2001-
Moderator Diesel RV Club 2002-
Moderator, FMCA Forum 2009-2020
Chairman FMCA Technical Advisory Committee 2011-2020

Re: Bulkhead bolt hole covers

Reply #8 –
We bought them at Ace hardware from their small-drawer isle. Most hardware stores have these drawers...
 

Re: Bulkhead bolt hole covers

Reply #9 –

I ended up buying these and they're perfect. Snug enough fit that you have to tap them in with a mallet.

 Amazon.com: 1 3/4" 1.75 inch Flush Mount Black Plastic Body and Sheet Metal...

As an Amazon Associate Foretravel Owners' Forum earns from qualifying purchases.
1987 Grand Villa ORED
2001 U320 4010

Not all that wander are lost... but I often am.