- Familiarity: I've put it through the wringer
It is no secret why these nuts have nothing but 5-star reviews. They are wonderful. The groove in the curved heads really makes it easy to fit these into cracks and crevices really snug. They bite the rock quite easily which also provides me with a sense of security while on the wall. None of the other stoppers I have used compare to these. Definitely would recommend to all for building their rack or just doubling up on sizes.