I have searched the "search forum" and cannot find the particular barrel nut I remember seeing on here last year. Someone shared about a barrel nut that can be loosened and tightened with a box end wrench. I'm pretty sure it was a stainless nut, but finish is not important to me.
Does this sound familiar to anyone? If you can share the name/company or the link I would greatly appreciate it. I would like to change out my round barrel nut that now has pipe wrench marks on it.

If you have any other barrel nut recommendations that might be user friendly, feel free to share. Thanks.