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Durabilt Safety Chain Connectors for 3/8" Chain - 7,100 lbs - Qty 2
Durabilt

Durabilt Safety Chain Connectors for 3/8" Chain - 7,100 lbs - Qty 2

Part Number: DU23QR
In Stock
$38.87
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Quickly and easily connect your safety chains to your trailer hitch with these oversized links. Durable, Grade 80 steel construction. Hammerlock coupling links work with 3/8" chains. 7,100-lb Load limit. 1-800-940-8924 to order Durabilt accessories and parts part number DU23QR or order online at etrailer.com. Free expert support on all Durabilt products. Great prices and Fastest Shipping for Durabilt Safety Chain Connectors for 3/8" Chain - 7,100 lbs - Qty 2. Accessories and Parts reviews from real customers.
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  • Reviews (111)
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  • Videos (2)
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Durabilt Accessories and Parts - DU23QR

  • Trailer Safety Chains
  • Safety Chain Parts
  • Quick Links
  • Durabilt
  • 3/8 Inch Diameter

Quickly and easily connect your safety chains to your trailer hitch with these oversized links. Durable, Grade 80 steel construction. Hammerlock coupling links work with 3/8" chains. 7,100-lb Load limit.


Features:

  • Oversized links let you attach safety chains to your hitch quickly and easily
    • Creates a more accessible attachment point than the connection loops on your hitch
  • Pins can be hammered through the links and retaining collars for installation
    • Remove pins with a hammer and punch
  • Tempered, Grade 80 steel construction
  • Corrosion-resistant, red powder coat


Specs:

  • Application: 3/8" thick chain or slip hooks with 3/8" throat opening
  • Safe working load limit (WLL): 7,100 lbs
  • Quantity: 2 coupling links
  • 1-Year limited warranty


DDL-3/8 DURA-LINK Durabilt Hammerlock Coupling Links for 3/8" Chain - 7,100 lbs - Qty 2





Video of Durabilt Safety Chain Connectors for 3/8" Chain - 7,100 lbs - Qty 2
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Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Comprehensive Review: Durabilt Safety Chain Connectors for 3/8" Chain

Hi there, haulers. Today, we're gonna be taking a look at Durabilt's line of Hammerlock locking links. And here you can see what they look like when they're installed. They do have a nice kind of a burgundy powder coat on them so it does make it look nice, helps protect it against corrosion. The quick links I do find to be a bit easier to use. But obviously, that thing is not gonna come off of there.

Now, the likelihood of this coming unscrewed is pretty low but it potentially could happen. But if you kind of barrel down on it with a wrench or something, usually you can get those to stay pretty well. Now, what the customer did have that I would not recommend is one of these. He had some pretty big, heavy-duty ones on there, sure. And it probably has a lot of working load limit power over some of the other styles with how big they are, except the only problem was this was the only one that actually had a pin in it.

The other one that was just kind of dangling by the width of it and it was ready to fall at any point. So, this style here does tend to come unscrewed a little bit more easily. I mean, you can put a kind of a screwdriver or some tool in there and torque down on it, but this actually is completely separate. So, unlike the quick link ones here where if it does unthread, you know it's still fairly secure. But with this one, there's just a much bigger opening.

The whole thing could fall out. The nut on this just kind of screws down so it's still fully attached to itself. This pin here, the one that it fell out of here, I mean it's 70 miles an hour, the size of this pin, if that bounces up, I mean that could really do some damage to some vehicles or a person. So, I just recommend kind of staying away from these. These are a little bit more dangerous even though they do have a lot of oomph.

I like them for your slower stuff, for tractors and things like that. You know, on the farm, this stuff's cool but out on the road, you want something a little more secure that's not gonna fall off, you're not gonna lose something. So, I would stick with one of these. This is probably the most secure. This one's just a lot easier to utilize. And you actually have to drive the pin in through this little mechanism to lock it in place. And it is not an easy thing to drive in. It is actually pretty difficult to get this to drive through there. That's why I got a little bit of grease here to help things move along a little bit easier. You can get these in different weight ratings. One of these here, we're using 3/8 for this particular version with a 7,100 pound working load limit. You can get these in different sizes though, from as small as a 5/16 size up to a 5/8 size. So yeah, 5/16, 3/8, half-inch, 5/8, and each one is gonna have its own specific weight rating depending upon its size. Obviously, the larger ones are gonna have a higher weight rating than the smaller ones. We're using the 3/8 ones here today though, cause the trailer that our customer's using here, this is gonna be more than enough for this trailer to keep him safe and a little bit of headroom for if he wants to upgrade in the future. Now, I will say these quick links here, this is another option that you can use for these weird, especially on these GM or Chevy hitches, you can see they're kind of weird. The chains there almost don't have any good way to really latch in there. I mean that one I'm able to get in there but you can see the end has kind of been damaged a bit. Let's try our other chain. And I mean we are able to get that in there too. It's just not nearly as easy as it will be with these Hammerlocks here. And in the instance that you've got one of these, so this is another option. You can see that this'll slide on there and that'll thread up. Now, this here is gonna be probably the easiest option to use. It's not gonna look quite as nice though as the Hammerlocks. The Hammerlocks are also gonna have a bit of a pivot in them so it just kind of sits better than this is gonna sit in here. But these guys are pretty reliable and very easy to use. These are in different sizes though, so you do wanna make sure if you're going with this option, that you do get the appropriate size for the right working load limit that you need for your trailer. Let's go ahead and show you how the Hammerlocks installed now that we've kind of compared it to the quick link. So, we'll take one side of this. That will slide around on there and then we can take our other end here. I'm gonna just, a little bit of grease on the end of it there just to help it slide together a bit easier. We're gonna come up here to the trailer side, I mean to the hitch side, slide the two pieces together, slide that in there and then we can pull it back out a little bit, pull the pin back out, drop in the center piece and then just drive it on home. And when I say drive it on home, I mean drive it on home. It is not gonna be easy. All right, almost there. A little bit more. Try to make it even on each side. And that looks pretty good. And that pin is gonna be in there because the center of that pin we just drove through is a slight smaller diameter than the two outer pieces so that's why we get nice free movement. The pin will slide back and forth ever so slightly. You can see that I can push it a little bit that way, a little bit that way, but it is not gonna be able to come out of there. You saw how hard it was to drive in. So, the likelihood of it just falling out with how difficult it is to drive in is pretty slim to none. And now, we've got our chains installed. We can now hook up to our trailer a little bit more easily. It will accept a lot more style of safety chains than before. You don't necessarily have to have the biggest chain that'll have a big opening to work with this style. It'll work with a lot smaller ones as well now. So, there we go. And that completes our look at Durabilt's line of Hammerlock locking links..

Customer Satisfaction Score:

Ratings & Reviews

4.5

111 reviews
5 Stars
(85)
4 Stars
(10)
3 Stars
(7)
2 Stars
(3)
1 Star
(6)
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by:
Product appears well made, but was too small to properly fit my Ford F250 Super Duty hitch.
James D. profile picture
Etrailer Expert

James D.

5/11/2026

Byron we appreciate the feedback. As long as the part hasn't been installed and used, we can do an exchange or refund. If you're interested in finding the right size, let me know.

by:
The Durabilt Safety Chain Connectirs are exactly what I required to extend my trailer safety chains. Etrailer customer service is always to me and their staff is very knowledgeable. I will continue to be a customer with this company.
Lazer S. profile picture
Etrailer Expert

Lazer S.

1/27/2026

Thanks for the kind words, Bruce! Glad we had what you needed as well! ^___^ What kind of trailer are you pulling?

by:
Very difficult to hammer pin for DIY install. Especially with no jack or tools to wedge hammer locks
by:
Installation note: Even greasing the pin, it is a pain in the ass to drive the pin into position...:)
But once they are in place, it is a piece of cake to connect your trailer chains...:)
by:
Did not fit properly on my F250. I emailed them about it and have not got anything back.
by:
Perfect for providing the smoother connection for my trailers' safety chain connections to the hitch on my GMC 3500
by:
Work as advertised
by:
Great quality.
by:
Not really big enough for my f150 but I’ll use them somewhere. My fault for ordering the wrong size. Should have ordered 1/2 in
Gwendolyn Y. profile picture
Etrailer Expert

Gwendolyn Y.

3/4/2025

Hey Samuel. I've been guilty or ordering the wrong size of things so many times so your review feels very relatable. I did check to see if we had the same kind of connectors in that 1/2" size and we do, its part # DU35QR. If you want you can bookmark it for whenever you're ready to order the other size. :)

by:
No directions which was okay, but weird. Very difficult to put together and install on the safety chain hitch holes of my truck.
by:
The product is not work. It’s very difficult to install the call. It seems to be too small for the post that you have to drive through the link and I intend to return the product because it’s unusable.
by:
Very solid!
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If you have a General Motors heavy duty truck bumper poles 18,000 pounds you will need these to hook your chains up. Install went very easy with a 5 pound sledgehammer. There’s a reason why these are rated for 18,000 pounds they are definitely heavy duty. The only way you’re gonna get them off is with an acetylene torch.
Richard profile picture

Richard

2/10/2026

Been using them for over a year now. Have only found one issue they are too large for smaller trailer chain hooks. Fixed this problem by getting 2 hooks that will fit over the eyes. Placed a smaller on the connector of the hooks. Leave them in my truck to use on any smaller trailer. Would still recommend too anyone wanting to tow heavy.

by:
Order arrived quickly. Went on easier than expected for some of the other reviews. Just a little grease on the end of the pin and a 4 pound sledge drove it in without a problem. 2016 Chevy 3500 HD.
Brooke M. profile picture
Etrailer Expert

Brooke M.

4/30/2025

Looks great! That red is super flashy and its awesome. Thanks for sharing your photos!

Dennis W. profile picture

Dennis W.

1/16/2026

It is working great. Best solution out there.

by:
They don’t fit on my Ford F250 as well as others on your videos. Also the pin and lock that I use still hits them and I have to work around it where the video said that wouldn’t be a problem.
by:
Item was as described. Install was no issue. And these are way over anything I would tow so my Ford will not get chains stick again. Stupid that Ford makes your do this but it is what it is.
Kate F. profile picture
Etrailer Expert

Kate F.

11/13/2026

Brendan, I can't say I blame you for wanting to avoid getting those chains stuck again. Sometimes the simplest fixes make the biggest difference. Glad the installation was a breeze, and thanks for taking the time to snap a picture.

by:
This is perfect!! No more fighting my trailer chains!!!
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Info for this part was:

Employee Lindsey S
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Employee Jeff D
Installed by:
Jeff D
Employee David F
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Employee Chris R
Video Edited:
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Video by:
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