Castle Nut / Rear Axle M12X1.25 (M12 x 1.25 Bolt)$6.99PriceQuantity*Add to CartBuy NowThis is the Castle nut that attaches the rear wheel hub to the axle. This item will fit many other models of Chinese ATV's and Go karts Please check the measurements.Shipping PolicyShipping is calculated at checkout.Return PolicyPurchases of this item are final.