Cotter Pin Split Pin Castle Nut

Use cotter pins to lock a castle nut or secure a clevis pin. The nut is then secured with a split pin cotter pin r clip or safety wire. 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.

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They re also known as castle nuts and slotted nuts.

Cotter pin split pin castle nut.

In this video one of our resident fastener specialists talks about castle nuts. Difference between cotter pins and split pins. Cotter pin is a fastener used for locking the nuts onto the bolts. Cotter pins are made of mild steel and are used for locking nuts at the place.

Hairpin clips also called r clips are designed to slip on with no bending required. They re not recommended for use on parts exposed to high vibration because the pin is prone to shearing under prolonged stress. Secure these nuts by inserting a cotter pin or safety wire through the slots and a drilled hole in your bolt for mild loosening resistance. Bob both explains and demonstrates how castle nuts are used alongside cotter.

It is a positive locking device. Cotter pins are commonly used in clevis pins as it has a premade hole in it. However when the nut is torqued to something like 70 or 80 ft lbs there. A cotter pin is easy to install and remove and is commonly used to secure a wheel or machine component on an axle.

A castellated nut sometimes referred to as a castle nut is a nut with slots notches cut into one end. Castellated nuts are used in low torque applications such as holding a wheel bearing in place. Cotter pins are not included. A split pin has two long tines that are bent to hold it in place.

You obviously need a cotter pin there to keep the nut from backing out. You have to drill a small hole into the bolt to use it. Height includes the slots.