... ;6. Insulator: Pandrol series #7,#8, #9, #11,#12, #13 Nylon insulators;7. Lock washers: wL20, WL24, Wl22, Fe6;8. Plain washer ... nut, heavy and normal;10. Rail casting shoulders for pandrol type clips;11. Tie plate: Cast AREMA Rail base plates and ... UIC standard sole pads;12. Rail joint bar: AREMA 136RE, 115RE, and UIC54, UIC60, TJ57 ...