Equalizer Hitch Spacer Washer Size

Mine are 1/2 inch. I needed to add some when we both a new TT. I went to Ace hardware and bought 1/2" #8 hard flat washers. They worked fine.

As above. Be SURE you get hardened washers, or they will just squeeze smaller.

I ran standard 1/2 inch washers for four years. Although they were larger diameter and not hardened, they never had a problem with "squishing". Be sure you sandwhich the new washers between the factory ones - especially if not hardened.

Another tip. A different thickness of washer may give you the perfect adjustment if you find you are in between settings

Just called Equalizer this past Friday, with the same question.
GREAT customer service by the way..
This is what they told me.....
Washers are GRADE 8 (as is all of the hardware)
1/2" ID
1 1/8 OD
1/16" thick
Max number of washers = 8