I'm not sure what you mean? The Nazi party was a fascist organisation...among other things. Mussolini's party was fascist as well. I dont think it was possible to be a Nazi supporter and not a proponent of a Fascist agenda in the 1930's/40's but todays Nazi apologists are often primarily interested in the Nazi's racist and antisematic agenda. For many people Nazi apologism is strongly and perhaps primarily linked with Holocaust denial.

The word Fascism may today primarily conjure images of Hitler and the Third Reich, but in the thirties it was strongly tied with Italy as well.