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Our enterprise insists all along the standard policy of “product good quality is base of organization survival; client gratification could be the staring point and ending of an enterprise; persistent improvement is eternal pursuit of staff” and the consistent purpose of “reputation to start with, purchaser first” for Wholesale Dealers of Gete Black Carbon Steel DIN935 Hex Slotted Nuts Hex Castle Nut/ Slotted Nut, We now have developed a responsible name amongst many customers. Quality&customer very first are usually our constant pursuit. We spare no endeavours to help make much better solutions. Look forward to long-term cooperation and mutual advantages!
Our enterprise insists all along the standard policy of “product good quality is base of organization survival; client gratification could be the staring point and ending of an enterprise; persistent improvement is eternal pursuit of staff” and the consistent purpose of “reputation to start with, purchaser first” for China Black Hex Slotted Nut and Heavy Hex Slotted Nut, We pursue the management tenet of “Quality is superior, Service is supreme, Reputation is first”, and will sincerely create and share success with all clients. We welcome you to contact us for more information and look forward to working with you.

What is castle nuts?

A castellated nut, also known as a castle nut, has three notches in one end, giving an appearance similar to the crenellated battlements of a castle. Castellated nuts are a positive locking device that’s used to ensure that the nut remains affixed and resists vibration.

product features

These components are used in combination with a screw that has a pre-drilled radial hole. The nut is attached and a pin is passed through the notches and the hole in the screw, preventing the nut from turning.

Several types of pins may also be used for this purpose. These include:

A cotter pin, also known as a split pin — a fastener with twin tines, which after insertion are bent apart to prevent removal.

An R-clip, also known as a hairpin cotter pin or hitch pin — a sprung metal fastener with one straight leg inserted into the hole and one profiled leg that grips the outside of the nut.

Safety or locking-wire — a wire that’s passed through the notches and the hole, then twisted, and anchored to secure the nut.

With six notches spaced at 60-degree intervals, the castellated nut can only be locked where a notch corresponds to the hole. After correct torquing, it’s necessary to turn the nut again up to 30 degrees (in either direction) to locate the hole.

As fine-tuning the torque is not possible, castellated nuts are better suited to low-torque applications. They’re unsuited to applications that require a specific preload.

Castellated nuts are often threaded with Unified inch fine (UNF) or Unified inch coarse series (UNC) with thread diameter — typically from 1/4 to 1-1/2-inch in varying nut widths and heights.

A castellated nut has a cylindrical top of a smaller diameter where the notches are, with a higher profile than a typical nut of its size. It’s similar to a slotted nut but the rounded section featured on a castellated nut allows the pin to be secured tighter to the nut than is possible with a slotted nut.

Applications

Additionally, a castellated nut is a locking device that’s resistant to movement and vibration but that can be readily removed. This makes it a popular choice for securing the position of a bearing onto a spindle. Castellated nuts are commonly used within the automotive, aircraft, and locomotive industries.

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