ALL ABOUT WASHERS YOU SHOULD KNOW
Washers, also known as flat washers or spacers, are small, flat metal discs with a hole in the middle. They are used as an intermediary component between nuts and bolts, threaded rods, screws, or other joining elements in fasteners.
Structure of washers:
Washers are typically made of metal, such as steel, stainless steel, brass, aluminum, etc.
They have a flat shape with a round hole in the middle.
The size of the hole and the outer diameter of the washer are standardized according to international standards.
They have a flat shape with a round hole in the middle.
The size of the hole and the outer diameter of the washer are standardized according to international standards.
Materials used to make washers:
The choice of material for washers depends on the specific operating environment and application. For example, if washers are used in a humid environment, it is best to choose a type made of stainless steel to resist rust.
Main functions of washers:
Protect the surface of the components when tightening the nut: Washers help to distribute the clamping force of the nut more evenly over the surface of the component, preventing damage or deformation.
Increase the adhesion between the nut and the component: Washers help to increase the friction between the nut and the component, making the joint tighter and preventing it from loosening during use.
Vibration damping: Washers can help reduce noise and vibration caused by screws.
Positioning: Washers can be used to position the nut on the component.
Increase the adhesion between the nut and the component: Washers help to increase the friction between the nut and the component, making the joint tighter and preventing it from loosening during use.
Vibration damping: Washers can help reduce noise and vibration caused by screws.
Positioning: Washers can be used to position the nut on the component.
Classification of washers on the market today:
Depending on the specific application purpose, different types of washers are used. In terms of structure, the most common types of washers include:
Square washers
Stainless steel washers
Cup washers
Beveled washers
Horseshoe washers
Flat washers
Overall, beveled washers are the most widely used type. So, what is the English name for beveled washers? In fact, this type of fastener is commonly referred to as a Spring Washer.
The structure of this type of beveled washer consists of a round cut ring, designed to be beveled compared to the overall structure of the washer. Similar to other types of washers, the function of beveled washers is to increase elasticity. This helps to make the bolt and nut joint more durable and secure. Therefore, even over time, users do not have to worry about the joint expanding and causing unwanted consequences.
Reference link for washer products of LIDOVIT Company: http://www.lidovit.com.vn/san-pham
What is special about the standard washer specification?
When referring to the standard washer specification, first of all, you must understand the three basic parameters of this detail. These include: the inner diameter of the washer - often denoted as d1 in technical drawings. Along with that is the outer diameter of the washer (d2). And finally, the thickness of the washer (s).
The standard washer specification is summarized in the following table:
|
Size |
d1 |
d2 |
s |
|
M1.6 |
1.7 |
4 |
0.3 |
|
M2 |
2.2 |
5 |
0.3 |
|
M2.5 |
2.7 |
6 |
0.5 |
|
M3 |
3.2 |
7 |
0.5 |
|
M3.5 |
3.7 |
8 |
0.5 |
|
M4 |
4.3 |
9 |
0.8 |
|
M5 |
5.3 |
10 |
1.0 |
|
M6 |
6.4 |
12 |
1.6 |
|
M7 |
7.4 |
14 |
1.6 |
|
M8 |
8.4 |
16 |
1.6 |
|
M10 |
10.5 |
20 |
2.0 |
|
M12 |
13.0 |
24 |
2.5 |
|
M14 |
15.0 |
28 |
2.5 |
|
M16 |
17.0 |
30 |
3.0 |
|
M18 |
19.0 |
34 |
3.0 |
|
M20 |
21.0 |
37 |
3.0 |
|
M22 |
23.0 |
39 |
3.0 |
|
M24 |
25.0 |
44 |
4.0 |
|
M27 |
28.0 |
50 |
4.0 |
|
M30 |
31.0 |
56 |
4.0 |
LIDOVIT Industrial and Trading Joint Stock Company
ADDRESS: Lot D5, Street No. 3, Binh Chieu Industrial Park, Binh Chieu Ward, Thu Duc City, Ho Chi Minh City
EMAIL: info@lidovit.com.vn
PHONE: +84-28.3729 4183
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