What Is a Long Nut?
A long nut, a variation of a hexagon nut, is distinguished by its extended length compared to a standard hexagon nut. Often referred to as spacer nuts or joint nuts, they are commonly used in construction fittings and electronic device components.
These nuts are utilized when bolt extension is needed or to elevate boards and other components. Available in various materials like steel, brass, copper, and stainless steel, they offer versatility in application.
Uses of Long Nuts
Long nuts are primarily used in construction fittings and electronic device parts. Their cylindrical shape with internal threading allows for the insertion of screws from both ends. This feature enables bolts to be connected from either side, extending their length or serving as joint connections. They can also be used as height adjusters, such as in vending machines or game center enclosures, by varying the screw tightness.
In electronic equipment, they are often employed to elevate printed circuit boards, creating a gap to prevent contact with other components or the casing.
Features of Long Nuts
Long nuts are cylindrical with internal threads throughout. Some variations have female threads on one end and male threads on the other. However, these are categorized as hexagonal posts, distinct from long nuts. Their nomenclature may vary based on application; for instance, they are often called spacer nuts when used with printed circuit boards.
Available in materials like iron, brass, copper, and stainless steel, each type has specific uses. Brass and stainless steel are preferred for electronic equipment to avoid contact between circuit boards, while iron is commonly used in construction hardware.
Steel long nuts are the least expensive but are prone to rust in salty or moist environments, making stainless steel a better choice in such conditions. Sizes range from M3 to M20, with smaller sizes like M3 to M4 frequently used in printed circuit boards.