The 3834-00 is the perfect option to upgrade the nut on your 4-string Bass guitar.

Flat Bottom.

It is pre-slotted for a quick and simple installation.

Measurements   
Length: 1.502”  //  38.14mm
Thickness: 0.135”  //  3.42mm
Height:  0.236”  //  6.0mm
String Spacing: 1.133”  //  28.79mm