The Carry-On Trailer 643 Castle Nut Kit has all the necessary items to secure hub to spindle. This castle nut kit includes a castle nut, cotter pin and washer used in some applications. The castle nut kit is compatible with 1-1/16 in. spindles. Castle nut kit includes castle nut, cotter pin and washer used in some applications Replacement castle nut kit for 1-1/16 in. spindle Use the castle nut kit to secure the hub to the spindle.
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