What are the main types of nuts?
What are the main types of nuts?
As a kind of fastener, the nut has many types and uses. Here is a clear summary of nut types:
1. Classification according to functional characteristics
Self-locking nut:
Features: It can be self-locked by friction to prevent loose vibration and other reasons.
Application: Widely used in the need of anti-loose, anti-vibration occasions.
Lock nut:
Features: Self-locking through the friction between the nut and the bolt, with stronger anti-loosening function than ordinary nuts.
Application: It is often used in vibration connection parts to ensure the stability of the connection.
Four jaw nuts:
Features: Through the inner thread and bolt tightly connected, play a tightening role.
Application: Mainly used in mechanical equipment, the equipment parts are closely connected together.
2.Classification by shape and structure
Round nut:
Characteristics: The shape is round, often used on shaft parts to prevent axial displacement.
Application: Used with stop washer to ensure the stability of shaft parts.
Hexagon nut:
Features: One of the most common nut types, with six sides for easy tightening with tools such as wrenches.
Application: Used with bolts and screws, widely used in the connection of various machinery and equipment.
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Flange nut:
Features: It has a larger ratio of support area to stress area and can withstand higher preload force.
Application: Mainly used in automotive engines, heavy machinery and other product fields.
Slotted nuts:
Features: The nut is notched to facilitate the use of cotter pins and other auxiliary tools for locking.
Application: Mainly used on equipment with vibration load to prevent nut loosening.
Cap nut:
Features: It has a decorative function more than ordinary nuts, and also has a certain anti-loosening effect.
Application: It is used in occasions where a certain decorative effect is required.
Butterfly nut:
Features: The shape is similar to a butterfly wing, which is easy to tighten and loosen directly by hand.
Application: It is used for occasions where the connection strength is not high and it needs to be disassembled frequently, such as hacksaw bow, newspaper clip, etc.
3. Classification by material
Nuts according to the different materials, can be divided into carbon steel nuts, stainless steel nuts, non-ferrous metal nuts (such as copper nuts) and so on. Nuts of different materials have different properties and uses, such as stainless steel nuts with good corrosion resistance, suitable for humid or corrosive environments; The copper nut has good electrical and thermal conductivity and is suitable for the needs of specific occasions.
To sum up, there are many types of nuts, and each type has its own unique characteristics and application scenarios. In the selection of nuts, it is necessary to choose the appropriate type and material according to the specific use environment and requirements.