Opening Dimension of Clevis Hook For Safety Chain Connection To Trailer Hitch Safety Loops  

The Curt Clevis Hook with Spring Loaded Safety Latch - 7/16 - 40,000 lbs Item #C81970 that you referenced is Grade 70, the attachment pin is 1/2 inch diameter, and the opening where the chain would slip through and the pin would hold it in place…

On the hook end of clevis hook #C81970 the opening is approximately 1-1/8 inches wide. The end with the pin it that you would attach to a rope or chain measures 5/8 inches wide.

For a general-purpose safety chain for a standard gooseneck trailer we offer #337BSC3842 from Buyers Products. This is a 42-inch chain with 3/8-inch clevis. The chain is rated for 15,000 pounds. This is sold as a single chain, not a pair. The 36-inch…

The Curt safety chain loops are notorious for being hard to fit safety chains to since they are pretty wide. Your best and easiest solution will be to replace the clevis hooks of your current safety chains with the part #C81970 which will easily fit…

The Curt 81960 clevis hooks you referenced have a 1" opening, and the safety chain loops of Curt hitch #C15802 are approximately 1-1/8" wide so you would be able to use them, but the hooks would not quite close. For Curt clevis hooks with a…

I have a clevis hook that may work with your 5,000 lb trailer. Take a look at part #6495-401-04. This hook has a working load limit up to 5,400 lbs and the pin that connects through the chain is 7/16 of an inch in diameter. We have heavy-duty clevis…

A safety chain's working load limit (WLL) is always 1/3 of the chain's break strength and it is the limit you want to stay within in normal use. If your chains have a rated break strength of 11,700-lbs then the correct clevis slip hook you…

I have a clevis hook that may work. Take a look at part #6495-401-04 . This hook has a working load limit up to 5,400 lbs and the pin that connects through the chain is 7/16 of an inch in diameter. The Curt Clevis Hook, #C81970 , has a 40,000 lb…

To fit your Curt Ball and Safety Chain Loop Kit #C60618, you need hooks that can fit over the roughly 1" wide top and 3/4" sides. You could use the Curt Clevis Hook #C81980 which has a 1-1/4" opening. This hook has a lot more weight…

Your best and easiest solution will be to replace the clevis hooks of your current safety chains with the part #C81970 which will easily fit the safety chain loops of the Curt ball and safety chain kit part #C60692 that you referenced.

The Curt Clevis Hook #C81970 is not completely uniform so its measurements vary depending on where it is being measured. I have included a video on this page that shows the width and thickness at key points and the opening dimensions. The opening is…

The difference between the Class II and Class III hitches has to do with their Gross Trailer Weight (GTW), their Tongue Weight (TW), and their Hitch Receiver Size. Class II trailer hitch receivers have a 1-1/4 inch receiver and can be rated up to…