So, I have called two Lowes and one Home Depot, and can't get a definite answer. I have been to Google, and found a few references. But nothing of real help. So, I have hand drawn some possible measurements on the pictures below. Would you use measurement #1, #2, #3, or #4? Also, what are the number/letters, and what do they mean? BTW, this beast weighs about 43 pounds.

What are the units in your drawing? Inches?

And the letters mean Safe Working Load ## Tons.

quote:

Originally posted by Balzé Halzé:
What are the units in your drawing? Inches?

And the letters mean Safe Working Load ## Tons.

The numbers merely represent which possible measurement I thought is used to determine what size clevis this is. For example; I go to Lowes and I see a clevis size 1 3/8". What are they measuring to get that 1 3/8". Would they be using measurement #1, #2,#, or #4.

OK, on the SFL##...Any guess what the two number after that is?

Think its measurement #2. That bears the load.

I don't know about a clevis from lowes but Balze has the right formula. The number is tons.
The strength depends on the entire design, not just the size of the pin. That's why you may see different size parts for a shackle rated the same tonnage.

More than you wanted to know here.
https://www.ccohs.ca/oshanswer...ndling/shackles.html

quote:

Originally posted by BigJoe:

quote:

Originally posted by Balzé Halzé:
What are the units in your drawing? Inches?

And the letters mean Safe Working Load ## Tons.

The numbers merely represent which possible measurement I thought is used to determine what size clevis this is. For example; I go to Lowes and I see a clevis size 1 3/8". What are they measuring to get that 1 3/8". Would they be using measurement #1, #2,#, or #4.

OK, on the SFL##...Any guess what the two number after that is?

Ah, I see. It's actually none of those. The size would be in reference to the diameter of the shackle. Same concept as #2 but at #3 and #4 if that makes sense.

It's hard to make out those numbers. Maybe 33 or 55? 35?

Point of reference are 4 wheel drive recovery equipment

https://www.4wheelparts.com/p/...13047/_/R-DSBP-13047

quote:

Originally posted by SIGfourme:
Think its measurement #2. That bears the load.

Right idea but it's not #2. It's the diameter of the shackle body that determines the size, not the pin.

That is called a bow shackle. Get this one: http://www.apsltd.com/wichard-...stainless-steel.html

Its breaking load is 35000 kg. Is that enough?

The listing shows how they are measured and the key dimensions are pin diameter, opening width and depth from pin.

quote:

Originally posted by pbslinger:
That is called a bow shackle. Get this one: http://www.apsltd.com/wichard-...stainless-steel.html

Its breaking load is 35000 kg. Is that enough?

The listing shows how they are measured and the key dimensions are pin diameter, opening width and depth from pin.

3500kg=77,161.792 pounds......It weighs 43 pounds. That's some serious weight right there!!!!!!!

quote:

Originally posted by BigJoe:

quote:

Originally posted by pbslinger:
That is called a bow shackle. Get this one: http://www.apsltd.com/wichard-...stainless-steel.html

Its breaking load is 35000 kg. Is that enough?

The listing shows how they are measured and the key dimensions are pin diameter, opening width and depth from pin.

3500kg=77,161.792 pounds......It weighs 43 pounds. That's some serious weight right there!!!!!!!

1.71 kg = 3.75 lbs. At least the price is right.

I don't know which amazes more about this forum: the questions asked or the answers.

One day I will ask a question which no member will have an answer to...

I believe they are sold by measuring the thickness of the metal where your hashmarks are at numbers 3 and 4. In other words....if the metal in that area measures 3/8 thick they sell it as a 3/8 shackle.

quote:

Originally posted by Edmond:
I don't know which amazes more about this forum: the questions asked or the answers.

One day I will ask a question which no member will have an answer to...

42

55 ton shackles weigh closer to 80 pounds, but a 35 ton weighs right in the 45 pound range.

Those big shackles are expensive. I bet the 35 tons run in the $400 to $500 range. 55 ton over $1,000 (for quality American made units).

quote:

Originally posted by a1abdj:
55 ton shackles weigh closer to 80 pounds, but a 35 ton weighs right in the 45 pound range.

Those big shackles are expensive. I bet the 35 tons run in the $400 to $500 range. 55 ton over $1,000 (for quality American made units).

From the research I have done with the information given above. I think it is a 35T and new cost is in the $400-$500 range.

Thanks to everyone for providing the information!

Seems folks here have it right.

https://www.uscargocontrol.com...w-Pin-2-G-209-35-Ton

But personally I would consider it a Big’n preceded by one or two vulgar descriptive terms.

35 tons would be my best guess.

how thick is your draw bar?