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Buyers Products 3/8" x 35" Class 4 Trailer Safety Chain w/ 1 Clevis Hook - 43 Proof

Buyers Products 3/8" x 35" Class 4 Trailer Safety Chain w/ 1 Clevis Hook - 43 Proof

Item # 337BSC3835
Our Price: $22.14
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Trailer Safety Chains
Shipping Weight: 5 lbs
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Required in most states, a safety chain acts as a backup if your trailer becomes disconnected from your tow vehicle. Attach the end link of this zinc-coated steel chain to your trailer, and then hook the clevis hooks to loops on your hitch. Great Prices for the best trailer safety chains from Buyers Products. Buyers Products 3/8" x 35" Class 4 Trailer Safety Chain w/ 1 Clevis Hook - 43 Proof part number 337BSC3835 can be ordered online at or call 1-800-940-8924 for expert service.
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  • Reviews (68)
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  • Videos (2)
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Buyers Products Trailer Safety Chains - 337BSC3835

  • Safety Chains
  • 15000 lbs GTW
  • Gooseneck Hitch
  • Towing a Trailer
  • 35 Inch Long
  • Clevis Hooks
  • Single Chain
  • Buyers Products
  • Standard Chains

Required in most states, a safety chain acts as a backup if your trailer becomes disconnected from your tow vehicle. Attach the end link of this zinc-coated steel chain to your trailer, and then hook the clevis hooks to loops on your hitch.


  • Safety chain helps ensure safe towing
    • Provides backup connection between trailer and tow vehicle
  • 3/8" Clevis hook on the end connects to safety chain loop on your hitch
  • Zinc finish resists rust and corrosion


  • Weight capacity: 15,000 lbs
  • Overall length: 35"
  • Link diameter: 3/8"
  • Quantity: 1 chain

BSC3835 Buyers Products 3/8" x 35" Class 4 Trailer Safety Chain With 1-Clevis Style Slip Hook - 43 Proof

California residents: click here

Video of Buyers Products 3/8" x 35" Class 4 Trailer Safety Chain w/ 1 Clevis Hook - 43 Proof

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.

Video Transcript for Buyers Products Class 4 Trailer Safety Chain with 1 Clevis Hook Review

Hi there trailer owners today, we're gonna be taking a look at, and showing you how to install buyers three eighths inch, class four safety chains. These come in at 35 inch length, and as a quantity of one. So you want to pick up two, if you're replacing the whole set on your trailer. And with 35 inches of length available to you, they are going to be great, not just for your bumper poles, giving you plenty of access in most cases there, but they're also gonna be really great for your gooseneck trailers. Giving you plenty of length to be able to reach from there, to your attachments in the bed of your truck as well. You'll receive your chain, and this is what you'll get here.

You'll have 35 inches worth of chain length, and you'll also have a three eighth inch clevis here at the end, attaching to our chains. We've got a nice attaching hook here for very big, heavy duty hook that should work out very well on your larger openings on your hitches. The individual links are going to be three eighths in diameter, and we can see that here. And you'll typically attach these using a clevis type attachment. You could also weld these directly to a trailer, or bolt them on as well.

but the most common and quickest way is going to be to use a clevis. And that's how we're going to be showing you how to get these attached today. So now we can go ahead and get these installed, with 35 inches of length here. That's why I've got the trailer hooked up so I can just determine how much length I really need to be able to hook to my trailer. 'Cause you may need that full 35, you may not need all that.

In this particular instance, we don't need all of this right here. So we're going to be choking up on our chain. And that's why I like the clevis attachment because we can choose kind of any length on here to, to attach to. Your other options, If you are going to weld or something like that, typically it's pretty permanent. You have to usually cut off your excess and stuff like that.

So with the clevis, we can just come down here to our trailer. And so we've already got one side attached to our trailer here. This is the other side of our clevis right here. So to attach to your clevis, we're simply going to remove the pin. Let me just push that over until it slid through the hole, we can then take our clevis pin out, And now we've got our attachment. These, these are designed to work with three eighth inch diameter chains, and you can get these here at etrailer. So now you could, if you need the full length, you just slide that in there and then reattach it with your pin. But on ours, we don't need quite the full length. So we're just gonna just roughly the length we need. I've already checked out on this trailer and determined how much length I need, and that ended up being 18 links worth of chain, so. And there's our 18 link there. So that way it's going to be the same length as our other side here, we'll then hold that up. And the way I determined the length, because it was kind of just a little bit of a trial and error. I'd slide a link in here real quick. I wouldn't even put the pin in, just slide one in and then I'd hook it to the trailer and take a at how much slack I had. And then I adjusted from there until I found an appropriate amount of chain. After we slide our pin through there, we can then put our cotter pin back in. We usually bend those sides so they can't come off of there. And I, we do have some extra chains hanging on down here. Now you could cut this off if you want to, but what I usually like to do, and just because you never know when this might come in handy later down the road, it's not going to hurt anything to hang out back here. So we're just going to take a zip tie and we're just going to clip it and attach it right on down the chain. Lemme just get rid of our excess there. And we'll just repeat that for the other chain to get that attached. And at this point, we're now ready to hook up to our trailer. So we've got one chain attached over here on the driver's side and the other chain attached here to the passenger side. When attaching your chains, you want to make sure you cross those chains. So we're going to put the one attached to the passenger side here, and clip it over onto the safety chain loop on the driver's side, and then vice versa through the other side. And what that's going to do is crossing our chains here. You can see the x it creates. It's going to act as a cradle. So in the event of a catastrophic disconnect, our trailer does come off. This x cradle here is going to keep our coupler from digging down into the pavement. To ensure that your new chains are gonna last a long time here on your trailer, there is a zinc plated finish over them, and that's going to help protect it against rust and corrosion. So we don't have to worry about links starting to rust and wear out at various areas and opening up on us. The chains are constructed of a carbon steel, which gives them a 15,000 pound working load limit. So with 15,000 pounds on each chain, we can add those together. We can support up to a 30,000 pounds of load behind us if we've got two of these together like this. So if you're looking for a set of heavy duty replacement chains, ones that you know you can rely on in those emergency situations, and you want to make sure you've got enough length to potentially even have excess for other projects. This is a great option. Because you've got a lot of length here. We've got a lot of strength here, and the overall construction just seems like this is going to be a very well-built long-lasting chain. And that'll complete our look at buyers three eights inch, class four safety chains..

Customer Satisfaction Score:

Customer Reviews

Buyers Products 3/8" x 35" Class 4 Trailer Safety Chain w/ 1 Clevis Hook - 43 Proof - 337BSC3835

Average Customer Rating:  4.8 out of 5 stars   (68 Customer Reviews)

Required in most states, a safety chain acts as a backup if your trailer becomes disconnected from your tow vehicle. Attach the end link of this zinc-coated steel chain to your trailer, and then hook the clevis hooks to loops on your hitch.


Held strong when our customer flipped the trailer our client was able to get it off the road


I've ordered from etrailer a number of times for parts from axles to safety chains and I've always been happy, which is why i keep ordering from them.


Very solid and nice looking safety chains. The clevis hook is forged and looks very strong.


Heavy duty chains. They should hold fine


These chains might be a little over kill, but I would rather have to much strength then always be wondering.
Great chains


Perfect fit


Chains worked perfect, great quality.


I ordered a number of items for a trailer that I am bringing back to life after leaving is stand at the beach for nearly 12 years. I got great advice on what parts I needed to match the original Haulmark lights and license plate bracket/light and also ordered a new breakaway system and safety chains. Everything was priced reasonably, shipped in a timely fashion and was a cinch to install as it all fit right to the original footprints.
I also found answers to my questions on some electrical issues by browsing the Q&A sections here.
Happy customer.


This is just the tail-end of an all-around superlative buying experience with etrailer. Two days before I was due to pick up a heavy trailer load with my Silverado Duramax I discovered that my “heavy duty” hitch was cracked in two places. After checking around, my mechanic found the etrailer website, which steered him to a real heavy-duty hitch perfect for my truck, overnighted it, and recommended the correct safety chains and hooks for the new hitch set-up. etrailer averted a potential tragedy. Great products, exceptional service, and fair prices.


Just what I needed heavy duty chains w quick connectors


The description is WRONG. In one location it states ONE chain, and in another location states TWO CHAINS. I chatted with someone on the site to ask if it was one or two and was told TWO chains for the price listed. I received ONE chain. I’m pretty sure it’s not legal to drive with only one chain…??

Etrailer Expert

Jenny N.


I will have our customer service team reach out to you. I have confirmed that this is just one chain so you would need to purchase two chains. We do have a set of chains available as part # 49150.


Chains look to be good quality and should last a long time. Easy install, only issue that turned out to be a non issue was the 1/2" quick link I purchased to attach the new chain to the trailer connection would not fit in the end link of either chain. Fortunately I needed to cut a few links off the new chains and the quick link fit just fine.


I ordered a similar product that was not available to ship immediately. Customer service contacted me within hours with an almost exact option that shipped the next day. Thank you!


Purchased to replace the lightweight chains someone had installed on a trailer I bought. Those chains probably wouldn't have held the empty trailer much less loaded with 6 round bales. Feel much more confident now, and they still look like new.


Perfect length for using with an extended shank with my weight distribution hitch.


My order was delivered on time, everything was right with my order and the shipment box that was used by etrailer was of a good quality box that the box did not fall apart in shipment. As for the question would I order again from etrailer , I can say to any one yes I would order again from etrailer. I would like to say to Geoffrey at etrailer
thank you Geoffrey for making sure that I received my order and that I was happy with everything that I ordered.
Thank you


Real heavy duty just as I ordered perfect fit for my trailer



Still in great shape even after a year of abuse and hard work


Good quality, chain isn't attached like in picture, it's a clevis style with a cotter pin


Replaced my chains with these and they are so much better than the original one!! Love shopping at etrailer they have everything I’m looking for!!


Chains have held up perfect. Used everyday with no rust. Great quality.


what I needed, quickly, for a good price


Heavy duty


Exceptionally fast shipping and great communication from this company. I am very happy!


Good quality heavy duty chain and hook.


Will work great on theHorse Trailer.

Show More Reviews

See what our Experts say about this Buyers Products Trailer Safety Chains

  • Will Removing A Few Links From Buyers Products 3/8" x 35" Safety Chain Reduce Strength Of Chain?
    I reached out to my contact at Buyers Products, and on the Buyers Products 3/8" x 35" Class 4 Trailer Safety Chain w/ 1 Clevis Hook - 43 Proof # 337BSC3835 you were looking at removing 3-5 links would not reduce the capacity of the chain. I included a video of the # 337BSC3835 for you to take a look at.
    view full answer...
  • Recommendation to Replace Safety Chains After Adding Extended Ball Mount on 33 Foot Camper
    It doesn't sound like you need too much more length to accommodate the longer shank on your new ball mount so I recommend going with the Buyers Products Class 4 Safety Chain # 337BSC3835. This chain measures 35 inches long, includes a clevis style slip hook, and is sufficient for use with trailers that weigh up to 15,000 pounds. You will need to order two of these chains for your setup. I have attached a short video review that you can check out as well.
    view full answer...
  • What Does It Mean When Chain is Described As Being 30 or 43 Proof
    Using the term 'Proof' when describing chain is a descriptor of its weight rating and its construction. A grade 30 or 30 proof chain is for a general purpose application that doesn't require a great amount of strength. A grade 30 chain will have a working load limit from 1300-6900 lbs, and is constructed of low-strength carbon steel. A grade 43 or 43 proof chain would be the next strongest grade, constructed of carbon steel with a working load limit of 2600-13000 lbs which makes it ideal...
    view full answer...
  • Safety Chains Compatible With Buyers Products Weld-On Safety Chain Retainer
    For your Buyers Products Weld-On Safety Chain Retainer # 3375471001 you will need a chain with a 3/8" diameter; you can use the 35" Buyers Products # 337BSC3835 or 42" # 337BSC3842. Both of these chains have a clevis hook and a maximum trailer weight capacity of 15,000 lbs.
    view full answer...
  • Will the Buyers Products 3/8" Retainer Work With 1/2" Chains?
    No, your 1/2" chains would be too big and wouldn't fit. The Buyers Products Weld-On Safety Chain Retainer For 3/8" Chain # 3375471001 is meant to be used with 3/8" safety chains like # 337BSC3835.
    view full answer...
  • How to Choose Safety Chains for 12,000 lb Trailer
    The safety chains you choose need to be able to handle at least 12,000 lbs so the # 337B03835SC wouldn't work for your trailer. You also need to choose a length that allows you to cross the chains and also be able to make sharp turns. The best way to determine the right length is to hook up your trailer and make a tight turn so you can measure the distance between the safety chain connections. For safety chains with a 15,000 lb capacity we have the # 337BSC3842 which are 42" long or the...
    view full answer...
  • Safety Chains with Clevis Hooks and Quick Links for an 8,700 Pound Trailer
    How about 2 of Draw-Tite Chain # 63451 and 2 of Safety Chain Quick Link # C82932. The chains are 42 inches long overall and rated for 26,400 pounds with a zinc coating to resist corrosion. The quick links have a break strength of 10,000 pounds. Based on what you are looking for this is going to be the best option.
    view full answer...
  • Recommended Safety Chains and Bolt Size Needed To Attach To Demco Coupler # DM16680-52
    Demco says to use 1/2" Grade 8 bolts 1-1/2" long for the safety chains on the Demco 50-Degree A-Frame Trailer Coupler # DM16680-52. I recommend the Buyers Products 3/8" x 35" Class 4 Trailer Safety Chain # 337BSC3835. You will need 2 of these as they are sold individually. The chain comes with a large clevis hook for your hitch and is zinc coated to resist corrosion.
    view full answer...
  • Recommended Safety Chains or Cables for 14k Horse Trailer.
    I have a solution for you, but we don't have any cables that would be sufficient capacity for a horse trailer. Instead I recommend using the Buyers Products 3/8" x 35" Class 4 Trailer Safety Chain w/ 1 Clevis Hook - 43 Proof # 337BSC3835 which have a 15000-lbs capacity and are made from a high quality carbon steel that is zinc plated to help withstand corrosion. These chains come with a clevis hook on the end so they'll be easy to connect to your tow vehicle. You would need to purchase...
    view full answer...
  • Safety Chain Solution for Trailers that Weigh 3,500 and 10,000 lbs
    For safety chains you want to go with a set that provides you with a break strength of at least what the trailer is rated for. Or you can go with a set that's priced great and easily over the capacity of both trailers like the Buyers Products chains part # 337BSC3835 which is rated for 15,000 lbs and would work great for both trailers.
    view full answer...
  • Trailer Safety Chain Connection to 2015 GMC 2500 with the 2.5" Hitch
    That is becoming a problem with more and more trucks these days. Some folks like to add the Blue Ox 1/2" Quick Link for Safety Chains part # BX229-0512 to the factory connection point to attach the safety chains to or you can add new hooks to the trailers like the Buyers Products 3/8" x 35" Class 4 Trailer Safety Chain w/ 1 Clevis Hook part # 337BSC3835 which allows you to connect to the factory connection points. For trailers under 10k the first option works once you get over it is best...
    view full answer...
  • Dimensions For Gen-Y Executive Manual Latch Shock Absorbing 5th Wheel-Gooseneck Pin Box
    I have included a image from Gen-Y that shows the dimensions for their Gen-Y Hitch Shock Absorbing 5th Wheel-Gooseneck Pin Box # 325-GH-8045. This will allow you to measure from the mounting points for your pin box to determine if you will have the length you need. Do check your weights for your specific camper that you will be installing this pin box as it is rated for 1,500-3,500lbs of tongue and a maximum trailer weight of 21,000lbs. Gen-Y Hitch Shock Absorbing 5th Wheel-Gooseneck...
    view full answer...
    Image 1 for
  • Safety Chain Weights Between Buyers Products Chains and Tow Ready
    The Buyers Products Chains part numbers # 337BSC3835 and # 337B03835SC both weigh 5 lbs and the part # TCTSCG30-730-04X1 weighs 2 lbs. For installing any of the mentioned chains we recommend using the weld on bracket # MB38 with the quick link part # C82932 on your trailer.
    view full answer...

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Info for this part was:

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Employee Lindsey S
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