1 x nut to assemble parts on gear. - mounting thread: M10. - left-hand thread. BC, CG, CYG, WLBC, 23, 26, 33, 42, 43, 45, 52, 415, 420, 430, 520, 650. - center hole: 25,4 mm. - 1 x spool with line. Our parts are made of certified, high quality, carbon containing steel.