Nuts, also known as nuts, are an integral part of fasteners, and their common specifications are varied to meet the needs of different application scenarios. The following is an introduction to the common specifications of nuts:
First, metric nut specifications
The metric nut specification begins with “M”, followed by a number indicating the nominal diameter, the larger the number, the larger the size of the nut. Here are some common metric nut specifications:
M3: indicates that the inner diameter of the nut is about 3 mm, which is suitable for tight connections in small mechanical equipment and precision instruments.
M4: indicates that the inner diameter of the nut is about 4 mm, which is widely used in automotive, electronics, furniture and other industries.
M5: indicates that the inner diameter of the nut is about 5 mm, which is suitable for the fastening connection of medium-sized mechanical equipment.
M6, M8, M10, M12: With the increase of the number, the size of the nut is also increased, suitable for larger sizes and higher bearing capacity of the fastening connection.
Second, inch nut specifications
Inch nut specifications are expressed by fractions or # numbers, such as 1/4, 3/8, 8#, 10#, etc. Here are some common inch nut specifications:
1/4: indicates that the inner diameter of the nut is about 1/4 inch, suitable for tight connections of small equipment and light structures.
3/8: indicates that the inner diameter of the nut is about 3/8 inch, suitable for the tight connection of medium-sized equipment and structures.
8#, 10# : These specifications are usually used in specific industries or specific types of equipment, such as electronics, communications and other fields.
Third, other special specifications
In addition to metric and imperial specifications, nuts also have some special specifications, such as hexagonal thin nuts, hexagonal thick nuts, flange nuts, etc. These special specifications of nuts are usually used for specific working environments or to meet special fastening needs.
Fourth, the material and grade of nuts
The materials of nuts are various, common carbon steel, stainless steel, brass and so on. Different materials of nuts have different strength and corrosion resistance, suitable for different working environments and conditions. In addition, there are grades of nuts, such as 4.8, 8, 10, etc., the higher the grade, the stronger the strength and carrying capacity of the nuts.
Fifth, the selection of nuts precautions
When selecting nuts, the following factors need to be considered:
Specification of bolt or screw: Ensure that the inner diameter of the selected nut matches the outer diameter of the bolt or screw.
Working environment and conditions: According to the working environment and conditions to choose the appropriate material and grade of nuts.
Fastening requirements: Select the right nut type and specification according to fastening requirements.
In summary, there are a variety of common specifications for nuts, including metric specifications, imperial specifications and special specifications. When selecting the nut, it is necessary to make comprehensive consideration according to the specific situation to ensure the stability and safety of the connection.
