What Size Bolts Are Needed To Secure the etrailer Round, A-Frame Jack TJA-5000S-B

Question

Question:

I just bought a trailer jack from etrailer - TJA-5000S-B A-Frame Trailer Jack. The directions say to use 3/8-16 grade 5 bolts but does not specify how long the bolts should be. So how long should they be?

asked by: Mary L

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Expert Reply:

The etrailer Round, A-Frame Jack part # TJA-5000S-B does not come with hardware so you will need to supply your own. The bolts should be 3/8"-16 grade 5 but the length would vary depending on the specific trailer. That said, I would think 2-1/2" should be plenty.

expert reply by: Conner L

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Answer 1

Typically tongue weight is 10-15 percent of the total trailer weight. Since your trailer weighs 9,760 lbs you would most likely have a tongue weight of 1,464 lbs. The etrailer.com Jack part #TJA-5000S-B that you referenced has a lifting capacity of…

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Answer 2

We have several jacks here that should work well on your camper. The etrailer A-Frame jack part #TJA-5000S-B that you referenced would be a great choice for if you are looking for an A-frame style jack with a higher capacity.

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Answer 3

It sounds like you may have wired your setup in such a way that the battery is somehow putting voltage on the brake output circuit which is why your brakes are locking up. Check the third page of the installation instructions I attached to see the…

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Answer 4

Check out the wiring diagram I attached, I think that will make more sense for you. There are 3 wires coming off of the breakaway battery as you indicated. The black wire will tie into the 12 volt hot lead from the trailer connector. This will…

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Answer 5

The Breakaway Kit with Premium Integrated Charger #50-85-313 should not overcharge the battery in the system. It will go into a maintenance mode to maintain the optimum charge after the battery is fully charged. A battery being charged will get hot…

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Answer 6

Choosing a ball mount with the proper rise or drop is not an exact science. I typically recommend allowing for 1 to 2 inches for sag once the trailer is coupled. This figure can increase of decrease depending on the trailer tongue weight and the…

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Answer 7

I have good news, our trailer jack that has a 2 inch outer diameter part #DL74MR would fit and work well. While it has a 1,000 lb weight capacity that does not mean 1,000 lb total trailer weight capacity. That capacity is the tongue weight capacity…

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Answer 8

For your 1999 Jayco Glacier Heritage trailer, I recommend the A-Frame Trailer Jack - Sidewind - 1,000 lbs. by Dutton-Lainson #DL22530. This is the only jack we have that has that 2 inch outer diameter upper tube. For a foot you'd want the part…

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Answer 9

I may have a solution for you but I'm not aware of a bolt on safety chain bracket or clevis that can be used. However you can simply take a safety chain set (or your existing chains) like the 42" Long Safety Chain with 3/8" Clevis Hook…

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Answer 10

The lowest profile trailer jack we offer is the Ultimate Trailer Jack part #322-RDJ-2K which can adjust down to 1-3/4 inches above the mounting bracket.

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Answer 11

I went out to the warehouse and found that the distance from the center of the jack to the furthest part of the adjustment pin on the Ultimate Trailer Jack #322-RDJ-2K when it is pulled out is 5-3/8". If you have this much room from the center…

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Answer 12

The etrailer and Pro Series A frame jacks will use 3/8 inch bolts, which is the standard size for A frame jacks and couplers. For install details and some product demonstration videos, click the provided links.

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What Size Bolts Are Needed To Secure the etrailer Round, A-Frame Jack TJA-5000S-B

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