Cotter Pin Split Pin Castle Nut

A castellated nut sometimes referred to as a castle nut is a nut with slots notches cut into one end.

Cotter pin split pin castle nut.

Castle nuts with securing cotter pins are primarily used on spindles with wheel bearings front wheels on a rear wheel drive car for example where the castle nut is adjusted to be only fingertight. They re also known as castle nuts and slotted nuts. The nut is then secured with a split pin cotter pin r clip or safety wire. Cotter pins are not included.

Difference between cotter pins and split pins. They re not recommended for use on parts exposed to high vibration because the pin is prone to shearing under prolonged stress. A split pin has two long tines that are bent to hold it in place. It is a positive locking device.

You have to drill a small hole into the bolt to use it. Hairpin clips also called r clips are designed to slip on with no bending required. A cotter pin is easy to install and remove and is commonly used to secure a wheel or machine component on an axle. Castellated nuts are used in low torque applications such as holding a wheel bearing in place.

In this video one of our resident fastener specialists talks about castle nuts. Bob both explains and demonstrates how castle nuts are used alongside cotter. You obviously need a cotter pin there to keep the nut from backing out. Height includes the slots.

However when the nut is torqued to something like 70 or 80 ft lbs there. Cotter pins are made of mild steel and are used for locking nuts at the place. Cotter pins are commonly used in clevis pins as it has a premade hole in it.