What Diameter are the Chain Anchors on the Demco A-Frame Trailer Coupler DM13205-95?

Question

Question:

The DM13205-95 couple has two pairs of tabs on the underside with threaded holes to attached safety chains. How am I supposed to use these? What side hardware do I need? I see a previous response that states the chains should be attached to the frame and not the coupler, but I assume thats just for liability reasons. If the threaded tabs on the bottom side of the coupler are not for safety chains, then what are they for?

asked by: Jon C

0

DM13205-95
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Expert Reply:

Hey Jon, welcome back! Those are indeed for safety chains. The chain anchor holes are 1/2" in diameter on the Demco 50-Degree A-Frame Trailer Coupler w/ Jack Hole item # DM13205-95. To attach a set of safety chains like the item # BPH94MR to them you will want to use 1/2" grade 5 bolts.

If you're concerned about attaching safety chains directly to the coupler, you can weld two of the item # E950 or item # 3375471000 to your trailer's frame.

What kind of trailer do you have?

You can add this information, along with any other questions you have, where it says Reply to Jerred H.

expert reply by: Jerred H

0

DM13205-95
(click to enlarge)

Jon C.

1/7/2026

Thanks for the quick response, Jerred! I have a dual axle 16'x8' steel deck homemade trailer (I did not build it, I bought it, but I am now refurbishing it). I'm guessing it weighs about 1500 lbs empty and with a 7k lb max weight. I believe it was designed to be a utility trailer, but I'm using it as a car hauler.

Jerred H.

1/8/2026

@JonC You're welcome! That sounds like a cool setup. What kind of car/s are you hauling around?

Jon C.

1/8/2026

@JerredH I’m setting this trailer up specifically to haul my 1971 MG Midget. It’s factory paint is Blaze—a reddish orange—which I found is very similar to Rustoleum Farm and Implement Enamel in Allis Chalmers Orange, so I’m in the process of painting my trailer in that. With black truck bed coating on the steel deck. I tipped the trailer up on its side to refurbish the underside. Then I replaced the equalizers, shackles, springs, U bolts and hardware, axles, hubs, brakes, wheels and tires. Much excite!

Jerred H.

1/8/2026

@JonC What a nice car! That is definitely not one you see every day. That's a good call with the truck bed coating. Just make sure your tires aren't super hot when you load your car. I saw all those suspension pieces and axles you bought. It sounds like you stayed busy last month. Looks like you upgraded the lights too. If there's anything else you need for your trailer, don't hesitate to reach out.

Answer 1

The B&W Companion RVK3000 was an early model that has a max weight rating of 18,000 lbs, adjustable height ranging from 14-3/4" - 16-3/4", and used U-Bolts for the installation. The B&W Companion #BWRVK3500 was upgraded so that the…

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Answer 2

Hi Dean; I'm only seeing the BulletProof Hitches 5/16" Safety Chains #BPH94MR which is a pair rated for 18,800 lbs. The individual chain rating is 9,400 lbs. What brand was the single safety chain? I don't see it as part of anything you…

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Answer 3

It sounds like you're looking for a replacement a-frame coupler like #CA-5280-RB but in a silver-painted or zinc-plated finish. Please click on the link provided to see all bolt-on standard a-frame couplers for 2-5/16-inch balls. For the…

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Answer 4

Yes, you will be able to replace your stock coupler with the Demco 50-Degree A-Frame Trailer Coupler #DM13205-95 as long as you have a standard a-frame trailer. I attached a picture below of the dimensions below so you can see if it would work for…

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Answer 5

The Curt Single Hook, Coiled Safety Cables with S-Hooks part #C80176 have a combined weight capacity of 7,500 lbs. The only option if you need to go much higher are safety chains like the Safety Chain with Clevis Hook part #63451. I have attached our…

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Answer 6

I definitely understand how safety chain capacities and determining exactly what chain rating you need for your trailer can be a bit confusing. To keep it as simple as possible, safety chain requirements state that the breaking strength of EACH…

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Answer 7

Hi Marc, thanks for reaching out. While drilling the Demco 50-Degree A-Frame Coupler #DM15349-52 is not the standard mounting method, it is generally preferable to drill the coupler itself rather than adding new holes to your aluminum A-frame.…

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Answer 8

Thanks for that photo, I do appreciate it. And all of the couplers we have - and indeed all the ones I am aware of - require a frame that is fully engaged. While Demco was not able to provide a dimensional drawing, we did measure the Demco 50-Degree…

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Answer 9

I attached a picture of the mounting holes for the Bulldog Heavy-Duty A-Frame Coupler, #BD44150WH301 that you referenced for you to check out so that you can compare them to the ones on your current coupler. Based on the picture you submitted this…

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Answer 10

Hey there Jeffrey! I would look at the Demco 50-Degree A-Frame Trailer Coupler w/ Jack Hole - eZ-Latch #DM13205-95. This matches your specs of the 2-5/16" ball, zinc finish for marine applications or just better corrosion resistance, and it has…

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Answer 11

The bolts required to install the Demco 50-Degree A Frame Trailer Coupler #DM13205-95 are 3/8" diameter x 1-3/4" long Grade 5 bolts. I spoke with the manufacturer and they confirmed that you won't want to use Grade 8 bolts on this…

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Answer 12

Hey Marc, it's the lower of the two holes in the Demco EZ Latch Coupler part #DM16080-95 that gets used for the hitch lock. We have that with part number #IR66FR which was specifically designed for this coupler.

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What Diameter are the Chain Anchors on the Demco A-Frame Trailer Coupler DM13205-95?

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