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.