Bock Fountain Pen Nib

Fountain Pen Nib Size
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Bock nibs are high quality, distinctive nibs and provide opportunity to upgrade the standard fountain pen nib.

  • Choose extra fine, fine, medium or broad.
  • This nib unit comes with feeder and threaded housing as pictured.
  • All nibs include the Bock housing and feeder system (unless we are changing the nib for you as part of your pen purchase).

Number 5 Nib

  • Size 5 means the feeder is 5 mm in diameter, at the shoulders of the nib.
  • This #5 nib fits the following fountain pen styles: Frankie, McKenzie, Urban, Classic, Vertex, The Boss, and Harold Junior.

If you are purchasing a pen from us we will change the nib out for you with our compliments.

 Upgrading your existing pen nib is easy to do yourself.  To change over the nib in a pen you have in your possession,  use the existing housing and feeder system from your pen. If you have difficulty changing your nib we can assist you over email or phone. Please contact us during standard work hours.


All orders over $100 qualify for free delivery and are shipped Australia wide using carbon neutral couriers. While every effort is made to ensure the safe and timely arrival of your items, please allow a realistic amount of time for shipping, we cannot guarantee your delivery date, once it leaves our workshop we have no control.

If you have an urgent order please choose Express Post and let us know

your ‘needed by’ date.

International delivery is available, please Contact Us for a swift personalised shipping quote.