The separator come with two cream screws which in my case was a lifesaver. The cream adjustment screw that was initially installed was installed slightly crooked. We removed it as the separator wasn't operating as expected. We noticed some of the threads on the screw were stripped. We installed second screw and cream separator operated as expected. I had not used the separator when I ordered it as my animals were not in milk yet. Used it for the first time 2 weeks after the 90 day warranty. Thus, I contacted company twice to order a replacement cream screw to have for a back up. Didn't expect them to replace it, I would pay for it. They informed they don't sell parts. So if anyone knows where to order the screws please post.I know 3 people who have ordered this separator and are please with it but also wanted to order back up cream adjustment screws...