Home › Forum › Ask A Member › Evinrude Sportwin bolt thread help needed › Re: Evinrude Sportwin bolt thread help needed
April 13, 2015 at 2:17 pm
#13860
Google SAE UNF threads. 1/4 by 19-20 will UNF rather than UNC. The F indicates fine thread, the UNC coarse threads.
http://www.omc-boats.org
http://www.aerocraft-boats.org