The castellated nut is essential for your safety whilst towing your trailer. More commonly known as the castle nut, it is used in conjunction with a split pin to prevent your hub and wheel coming off. It is a 3/4″ nut with a fine UNF thread which fits of majority Australian standard axles. Suitable for most 39mm Round and 40mm Square axles with LM Holden bearings and 45mm Square SL Ford bearings.
Advantages
What’s Included