The "pin" is made from the 1/16 Brass or Ni Ag rod that you get, the only pre-made pins are the Dovo ones, and some that are occasionally sold on e-bay by a seller named Rosy or some such...
For the prices of 4-5 sets of pre-made pins, you can usually make about 20-30 of yer own...
All you are actually doing is making your own small rivets....
Check out this thread it is the best I found with a quick search
http://straightrazorpalace.com/works...in-scales.html
Another thread you might wanna look at
http://straightrazorpalace.com/works...rods-pins.html