You can change from expensive 1/2-20 thread nozzles  to “Modular” style  less expensive nozzles by using the following :

https://www.alkydigger.net/proddetail.php?prod=ADPT.nozzle adapter

https://www.alkydigger.net/proddetail.php?prod=EN7111-Blunt nozzle body

https://www.alkydigger.net/proddetail.php?prod=EN7007-E modular nozzle tip  ( in .001″ increments )