Castle Nuts

Castle Nuts are often used alongside a bolt or a threaded rod that feature a pre-drilled hole, where a cotter pin can be used to secure the fixing and prevent movement.

These locknuts are also referred to as a ‘castellated nut’, and are ideal for use in applications where vibrations may undo a fixing.

Sometimes incorrectly, they are referred to as slotted nuts. Castle nuts are a different fastener altogether. Castle nuts visually look more like a hex nut and host protruding triangular portions, where as a slotted nut (pictured to the right), looks as though a hex nut has been cut with the slots and corners forming part of the protrusion.

This is a slotted nut.

Castle nuts are generally manufactured in steel or stainless steel, with other materials also available.

They are available in a range of sizes – with specials available to order – and thin versions also available.

If you require more information or would like to further an enquiry for this style of locknut, please send us your requirements by contacting us.

Thread

Grade 4 Steel

Grade 8 Steel

Grade 10 Steel

A2 Stainless Steel

A4 Stainless Steel

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