Located in our tee nut section, Propell Nuts are constructed without the prongs found on 3, 4 or 6 prong tee nuts. In their place there are three triangular extensions called "skives". The skives allow for the nut to be retained at the blind (back) end. This allows them to be used as levelers or guides. They are preferred over tee nuts when used in harder materials as they are less likely to split the base material.