Article / Updated 03-26-2016
A nut (that is, a string nut) is that thin, slotted strip of organic or synthetic material that lies across the end of the fingerboard and guides your strings on their way to the tuners. Beyond this purely functional role, the stuff your nut is made from plays a big part in shaping your tone.
Credit: Photograph and guitar courtesy of Tom Bartlett
In partnership with the bridge saddles, the nut is one of the two anchor points that determine the speaking length of your string — the components that denote the break between the section of the strings that vibrates and makes all the sound and the dead portions — and it greatly affects both the way in which the strings ring and the amount of vibrational energy that is transferred into the neck and body of the guitar.