This alloy AN banjo combines the popular AN6 outlet with a compact 10.5mm eye, matching ports that use an M10 banjo bolt. AN6 is the default size for most fuel feed and return work, and the small eye keeps the fitting tight against the casting, which matters on fuel rails, filter housings and pump outlets in crowded engine bays. Because the body turns freely on the bolt until it is torqued, you can align the hose tail after test-fitting rather than forcing the line. Use a sealing washer on each side of the eye. Remember the M10 bolt’s internal bore, not the AN6 tail, sets the flow ceiling.