QA1 offers its PCM and PCM-T Chromoly Steel Series rod ends. These black oxide coated rod ends offer superior load ratings over carbon steel two-piece rod ends and are available as metal-to-metal or PTFE lined. Ball 52100 Bearing Stee. Heat Treated. Hard Chrome Plated. Precision Ground. Body Chromoly Steel. Heat Treated. Black Oxide Coated. PTFE Lined.