Metolius Curve Nut
The Curve Nut has been discontinued. If you're looking for something new, check out the best chocks, nuts, and hexes for 2020.
Historic Range: $4.95-$10.03
I have the non-anodized version of these nuts, and they are truly excellent. They are very easy to place, and I have never had trouble removing them. All in all, they are very solid pieces, and I have no problems with them.