The 4234-00 model is a great option to upgrade the nut on your electric guitar where a 1.657 in (42.10mm) length nut is used.

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

Flat bottom.

Measurements   
Length: 1.657” / 42.1mm
Thickness: 0.135” / 3.44mm  
Height:  0.171” / 4.35mm
String Spacing: 1.352” / 34.33mm