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Old 07-30-2014, 11:13 PM   #1
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threaded rod vs bolts question


Hi,
I'm unable to find an exact hex bolt (galvanized ) I need....3/8x9".
The big box stores carry 3/8"x8" max.

Would galvanized threaded rod be an ok substitute ? The application is fastening through a swingset beam into heavy duty swing hangers.
I would put a double nut and washer on each end of the threaded rod.

Is there a difference between threaded rod and "galvanized electrical support rod?"

Like at HD bog box
http://t.homedepot.com/p/Superstrut-...038/100207537/

otherwise I will just countersink 1/2" into the swing beam support.

thanks!

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Old 07-31-2014, 09:01 AM   #2
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threaded rod vs bolts question


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Originally Posted by maxim1 View Post
Hi,
I'm unable to find an exact hex bolt (galvanized ) I need....3/8x9".
The big box stores carry 3/8"x8" max.

Would galvanized threaded rod be an ok substitute ? The application is fastening through a swingset beam into heavy duty swing hangers.
I would put a double nut and washer on each end of the threaded rod.

Is there a difference between threaded rod and "galvanized electrical support rod?"

Like at HD bog box
http://t.homedepot.com/p/Superstrut-...038/100207537/

otherwise I will just countersink 1/2" into the swing beam support.

thanks!
Go to fastenal it is a warehouse store that stocks every kind of nut bolt and screw ever made.
http://www.fastenal.com/web/home
there is their link hope that helps.

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Old 07-31-2014, 09:02 AM   #3
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threaded rod vs bolts question


If you want it Heavy duty you should have been using 1/2" not 3/8", then you would be able to find them long enough.
Why are you not using carriage bolts instead of hex bolts?
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Old 07-31-2014, 09:22 AM   #4
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threaded rod vs bolts question


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If you want it Heavy duty you should have been using 1/2" not 3/8", then you would be able to find them long enough.
Why are you not using carriage bolts instead of hex bolts?
Fastenal only carries SS in that length, it is a possibility...but $6 each for a bolt. Carriage bolts don't come any longer, and I didn't actually think there was a difference other than the rounded head.

Plus with a hex bolt I can put a socket on both sides. Is there a good reason to use carriage bolts? Nothing is tightened down yet.

So is the threaded rod not as good?

Thanks
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Old 07-31-2014, 09:27 AM   #5
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threaded rod vs bolts question


ACE hardware will probably have a 3 or 4 ft stick of 3/8 fine thread and fine is what you want being it is stronger than coarse. If you use red thread locker rather than jamb two nuts, a single nut won't move and the threads at that location will never rust.

Last edited by Fairview; 07-31-2014 at 09:31 AM.
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Old 07-31-2014, 10:05 AM   #6
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threaded rod vs bolts question


Threaded rod is fine. Used all the time.

Only real advantage to a bolt.....easier to install.
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Old 07-31-2014, 02:01 PM   #7
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threaded rod vs bolts question


I wouldn't use threaded rod on a swing set because it's generally soft. You need to use proper hardware because a swing set can seriously hurt or kill someone if it comes apart.
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Old 07-31-2014, 04:15 PM   #8
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threaded rod vs bolts question


You need to look a little harder at the Fastenal site.
SKU 11131 @ $1.82 3/8-16x9 hex bolt
SKU 21381 @ $1.23 3/8-16x9 carriage bolt
Hot dipped zinc will be more $ but worth it for outside use IMO
1/2" is available also in these length's.
A carriage bolt is customarily used on wood but don't quite know what your trying to do here.
A pic would be nice.
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Old 07-31-2014, 04:24 PM   #9
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threaded rod vs bolts question


And if the swing set is constructed with treated lumber you should be using Hot Dipped Galvanized (not zinc plated) hardware, at the very least.
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Old 07-31-2014, 06:15 PM   #10
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threaded rod vs bolts question


Making this way harder then it needs to be.
Never have seen fine thread galvanized threaded rod, and there's no need for it in this application.
Threaded rod, and carriage bolts are all going to be grade 2. Which will work fine for shear strength.
Just use 1/2 carriage bolts.
Makes you some how feel better use galvanized lock washers.
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Old 07-31-2014, 06:48 PM   #11
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threaded rod vs bolts question


Quote:
Originally Posted by High Gear View Post
You need to look a little harder at the Fastenal site.
SKU 11131 @ $1.82 3/8-16x9 hex bolt
SKU 21381 @ $1.23 3/8-16x9 carriage bolt
Hot dipped zinc will be more $ but worth it for outside use IMO
1/2" is available also in these length's.
A carriage bolt is customarily used on wood but don't quite know what your trying to do here.
A pic would be nice.
I saw what you were saying....hot dipped galvanized 3/8x9... found them....thanks

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