Special Design for Screw Bolts - ISO7380 Hex Socket Pan Head Screw Grade 10.9 8.8 Black Oxide – Hongji
Special Design for Screw Bolts - ISO7380 Hex Socket Pan Head Screw Grade 10.9 8.8 Black Oxide – Hongji
Special Design for Screw Bolts - ISO7380 Hex Socket Pan Head Screw Grade 10.9 8.8 Black Oxide – Hongji Detail:
Description
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|
d |
M3 |
M4 |
M5 |
M6 |
M8 |
M10 |
M12 |
M16 |
|
|
P |
Pitch |
0.5 |
0.7 |
0.8 |
1 |
1.25 |
1.5 |
1.75 |
2 |
|
a |
Max |
1 |
1.4 |
1.6 |
2 |
2.5 |
3 |
3.5 |
4 |
|
Min |
0.5 |
0.7 |
0.8 |
1 |
1.25 |
1.5 |
1.75 |
2 |
|
|
dk |
Max |
5.7 |
7.6 |
9.5 |
10.5 |
14 |
17.5 |
21 |
28 |
|
Min |
5.4 |
7.24 |
9.14 |
10.07 |
13.57 |
17.07 |
20.48 |
27.48 |
|
|
e |
Min |
2.303 |
2.873 |
3.443 |
4.583 |
5.723 |
6.863 |
9.149 |
11.429 |
|
k |
Max |
1.65 |
2.2 |
2.75 |
3.3 |
4.4 |
5.5 |
6.6 |
8.8 |
|
Min |
1.4 |
1.95 |
2.5 |
3 |
4.1 |
5.2 |
6.24 |
8.44 |
|
|
s |
Nominal |
2 |
2.5 |
3 |
4 |
5 |
6 |
8 |
10 |
|
Max |
2.08 |
2.58 |
3.08 |
4.095 |
5.14 |
6.14 |
8.175 |
10.175 |
|
|
Min |
2.02 |
2.52 |
3.02 |
4.02 |
5.02 |
6.02 |
8.025 |
10.025 |
|
|
t |
Min |
1.04 |
1.3 |
1.56 |
2.08 |
2.6 |
3.12 |
4.16 |
5.2 |
|
Minimum tension load(N) |
8.8Grade |
3220 |
5620 |
9080 |
12900 |
23400 |
37100 |
53900 |
100000 |
|
10.9Grade |
4180 |
7300 |
11800 |
16700 |
30500 |
48200 |
70200 |
130000 |
|
|
12.9Grade |
4910 |
8506 |
13800 |
19600 |
35700 |
56600 |
82400 |
154000 |
|
Detail drawing
There are many types of screws, one is called hexagon socket screws. When purchasing, the salesperson will also ask you which type to choose. Originally, there are many classifications of hexagon socket screws.
There are several types of hexagon socket screws
1. There is a type of hexagon socket screw called pan head. After the screw is installed, its head protrudes on the surface, which makes it more convenient to screw the screw later. This product can be seen on some household appliances.
2.There are countersunk head hexagon socket screws, which means that it will not protrude from the surface after screwing, and it will not affect the appearance. However, if there is a problem that is difficult to screw when screwing, the screw cannot be started.
3.There are also cylindrical head hexagon socket screws, which are similar to the second type of screws. They are relatively strong and require a wrench of the corresponding specification to remove the screws. Generally speaking, they are used on machine tools.
The screw is rusted and can’t be unscrewed, what should I do?
In life, many friends have encountered similar problems. Once the screws are rusted, no matter how much effort is used, they cannot be unscrewed. Because the screw is exposed to the air, if the surrounding environment is relatively humid, after a long time, it is prone to rust. In fact, don’t use brute force, you need to master the skills of screwing.
Tap it first, tap the corroded screw with a wrench, and tap the handle lightly, because if the corroded part is loose, it can be unscrewed later.
If it still doesn’t work after tapping, you can drop a small amount of oil, and then rotate it gently with the wrench a few times. If you don’t have oil at home, you can also use Coke because it will remove rust.
Packing
About us
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We stick to our enterprise spirit of "Quality, Efficiency, Innovation and Integrity". We aim to create more value for our customers with our rich resources, advanced machinery, experienced workers and excellent services for Special Design for Screw Bolts - ISO7380 Hex Socket Pan Head Screw Grade 10.9 8.8 Black Oxide – Hongji , The product will supply to all over the world, such as: Honduras, Thailand, Buenos Aires, Our company always provides good quality and reasonable price for our customers. In our efforts, we already have many shops in Guangzhou and our products have won praise from customers worldwide. Our mission has always been simple: To delight our customers with best quality hair products and deliver on time. Welcome new and old customers to contact us for the future long term business relationships.
By Janice from Senegal - 2017.09.30 16:36
This is a reputable company, they have a high level of business management, good quality product and service, every cooperation is assured and delighted!
By Julia from Czech Republic - 2017.09.09 10:18
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