Often used as a locking nut for a full size nut, or with another flat nut to prevent the fastening coming undone. Typically 1/3 to 1/2 the thickness of a full nut they take up the minimum of space.
Light weight and non corrosive with good mechanical properties.
Manufactured in black Polyamide (nylon) they provide a stable fastening with a working temperature range of -30 to +100 degrees C.
A versatile fastener that has many uses in all major industries.