A-Series aluminum rod end. Red finish with female mounting with left hand 1/4-28 thread. AF Aluminum Series rod ends from QA1 are female Endura Series rod ends that are designed specifically to save weight on performance applications. They feature a Nylon/PTFE injection molded race and are completely self-sealing and self-lubricating, keeping dirt and debris out. The AF Series rod ends are over 10% lighter than traditional three-piece aluminum rod ends and are the most wear-resistant aluminum design available.