Could you post a pic of what you have? Butler 41 is a crude model for Butler, IMO. My 41 had a square head bolt (I saw two other 41's with the same thing...square head bolt) used for a nozzle hanger. My pump was covered with surface rust and did not have any paint left. I left mine the way it was. Hose screwed into a bushing coming down to 3/4 in hose.