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nuts with nylon inserts versus lock washers and jamb nuts

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nuts with nylon inserts versus lock washers and jamb nuts mm 05-01-2008
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Posted by mm on May 1, 2008, 11:48 pm
I bought one of those little kit trailers, what you can get for about
350 dollars, with a 4x8' bed, for a one time use, and some little uses
aftewrads. From Harbor Freight that carries 990 pounds they say. I
only need to carry less than 100.

Assembling it today, I noticed that they depend on nuts with nylon
inserts to keep the nuts from coming all the way off. They depend on
tightening them tighlly to keep them from coming loose.

Is that enough or should I put split ring lock washers under each nut.

Or would it be better, just as good, to put jamb nuts on the bolts
that are long enough.

IIRC the instructions say in one place to check that the nuts are
tight after 100 miles, which seems like a good idea, but in another
place I think it said every 100 miles!!!!!

Thanks

Posted by Red Green on May 2, 2008, 12:15 am

> I bought one of those little kit trailers, what you can get for about
> 350 dollars, with a 4x8' bed, for a one time use, and some little uses
> aftewrads. From Harbor Freight that carries 990 pounds they say. I
> only need to carry less than 100.
>
> Assembling it today, I noticed that they depend on nuts with nylon
> inserts to keep the nuts from coming all the way off. They depend on
> tightening them tighlly to keep them from coming loose.
>
> Is that enough or should I put split ring lock washers under each nut.
>
> Or would it be better, just as good, to put jamb nuts on the bolts
> that are long enough.
>
> IIRC the instructions say in one place to check that the nuts are
> tight after 100 miles, which seems like a good idea, but in another
> place I think it said every 100 miles!!!!!
>
> Thanks
>

Yes even if they come loose they won't vibrate off and allow
disconnection. Built a custom motorcycle when I was a kid. Would not use
anything else but those. They were also used by the original manufacturer
before I chopped it.

> in another place I think it said every 100 miles!!!!!

Their lawyer assisted in instructions.

Posted by PV on May 2, 2008, 12:24 am
mm wrote:
> I bought one of those little kit trailers, what you can get for about
> 350 dollars, with a 4x8' bed, for a one time use, and some little uses
> aftewrads. From Harbor Freight that carries 990 pounds they say. I
> only need to carry less than 100.
>
> Assembling it today, I noticed that they depend on nuts with nylon
> inserts to keep the nuts from coming all the way off. They depend on
> tightening them tighlly to keep them from coming loose.
>
> Is that enough or should I put split ring lock washers under each nut.
>
> Or would it be better, just as good, to put jamb nuts on the bolts
> that are long enough.
>
> IIRC the instructions say in one place to check that the nuts are
> tight after 100 miles, which seems like a good idea, but in another
> place I think it said every 100 miles!!!!!
>
> Thanks

To be really sure nothing will vibrate loose, use blue locktite along with
the nylon insert nuts. Works like a charm especially in high vibration
environments.

--
PV



Posted by RBM on May 2, 2008, 6:58 am

>I bought one of those little kit trailers, what you can get for about
> 350 dollars, with a 4x8' bed, for a one time use, and some little uses
> aftewrads. From Harbor Freight that carries 990 pounds they say. I
> only need to carry less than 100.
>
> Assembling it today, I noticed that they depend on nuts with nylon
> inserts to keep the nuts from coming all the way off. They depend on
> tightening them tighlly to keep them from coming loose.
>
> Is that enough or should I put split ring lock washers under each nut.
>
> Or would it be better, just as good, to put jamb nuts on the bolts
> that are long enough.
>
> IIRC the instructions say in one place to check that the nuts are
> tight after 100 miles, which seems like a good idea, but in another
> place I think it said every 100 miles!!!!!
>
> Thanks

When I would build the shelving racks in my service vans, I always used
split ring lock washers and lock-tite, but due to the constant vibration,
it was a never ending battle to keep things tight. On the last two vans I
set up, I had discovered the nylon lock nuts, and nothing has ever come
loose since



Posted by N8N on May 2, 2008, 8:50 am
>
>
>
>
>
>
> >I bought one of those little kit trailers, what you can get for about
> > 350 dollars, with a 4x8' bed, for a one time use, and some little uses
> > aftewrads. =A0From Harbor Freight that carries 990 pounds they say. =A0I=

> > only need to carry less than 100.
>
> > Assembling it today, I noticed that they depend on nuts with nylon
> > inserts to keep the nuts from coming all the way off. They depend on
> > tightening them tighlly to keep them from coming loose.
>
> > Is that enough or should I put split ring lock washers under each nut.
>
> > Or would it be better, just as good, to put jamb nuts on the bolts
> > that are long enough.
>
> > IIRC the instructions say in one place to check that the nuts are
> > tight after 100 miles, which seems like a good idea, but in another
> > place I think it said every 100 miles!!!!!
>
> > Thanks
>
> When I would build the shelving racks in my service vans, I always used
> split ring lock washers and =A0lock-tite, but due to the constant vibratio=
n,
> it was a never ending battle to keep things tight. On the last two vans I
> set up, I had discovered the nylon lock nuts, and nothing has ever come
> loose since

I have heard from several authoritative sources that lock washers
really don't do much more than a properly torqued nut and flat washer
alone. The Nylocks are definitely an improvement. Anymore I only use
the split washers where they were originally used to keep an original
look but if I am building something from scratch I use either Loctite
or Nylocks.

nate

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