Hex Castle Nuts are internally threaded and hexagonal in shape nuts that have slots cut across the tope for use with a cotter pin for locking purposes. Castellated nuts are used in low-torque applications, such as holding a wheel bearing in place. Zero Products Inc.

Hex Slotted Nuts are internally threaded and hexagonal in shape nuts that have slots cut across the top for use with a cotter pin for locking purposes. Castellated nuts are used in low-torque applications, such as holding a wheel bearing in place.