Please see pictures for details Nut : 41.6mm 1F : 20.8mm 12F : 24.1mm End Width : 55.8mm Weight : 690g Neck : Flat Fret : 70% Rod: I’ve made sure it goes half way around in the tightening direction. Beyond that, we are not sure considering the burden. This 1971 model neck features a slim neck and F-Key pegs. The operation works well. The sound output is also no problem. And the operation of each button is also comfortable. If that, please let us know within 3 days you got the item.