Why would someone put little tacks in the neck of a banjo? - Quora
That gives you extra, just in case!
Banjo 5th String Capo Railroad Spikes HO size New package of 12 luthier parts
How to Install 5th String Spikes on Banjo by JDMC
These Deering Banjo Spikes are used to capo the 5th string of your banjo. Tiny and unobtrusive these spikes will allow you to capo the 5th string of
5th String Banjo Spikes
5th string capo or railway spikes - Discussion Forums - Banjo Hangout
How to Install Banjo 5th String Spikes
Banjo spike fitting service at Eagle Music Shop
Gold Tone MM-150 Maple Mountain Open Back Banjo w/Railroad Spikes, Hard Case
Railroad Spike Size: small, medium or large? - Discussion Forums - Banjo Hangout
RMB1405LN - The Music Alliance
Railroad Spike Capo for Your Guitar or Banjo : 7 Steps (with Pictures) - Instructables
Railroad Spike Capo for Your Guitar or Banjo : 7 Steps (with Pictures) - Instructables