A square nut is a four sided nut typically used to fasten a square-headed bolt.
How do they work?
Due to the square nut having four sides they have a larger surface area, therefore having a greater resistance to tightening and loosening.
Features and Benefits
Square nuts are easy to tighten.
They are ideal for use in blind or tight locations.
They are available in different sizes; typically the thread diameter.
They are available in different widths
Where would I use one?