Product Description
External hexagon bolt is a common metal accessory, also known as external hexagon screw or external hexagon screw. It is widely used in the fastener industry, mainly due to its simple structure, low cost, high torque, and non slip characteristics, making it one of the most commonly used types of bolts in automotive and other fields.
Structural features:
Appearance: The head of the external hexagonal bolt is hexagonal, while the stem has threads. The threaded part can be full thread or half thread, both have the same function but different standards.
Materials: Common materials include carbon steel, stainless steel, brass, and nylon plastic. The outer hexagonal bolts made of carbon steel materials usually have grades 4.8, 8.8, 10.9, 12.9, etc. Among them, grade 8.8 and above are made of alloy steel materials and are called high-strength bolts. Stainless steel bolts have good corrosion resistance.
Advantages:
1. Good self-locking performance: External hexagonal bolts have good self-locking performance and can provide a large pre tightening force.
2. Large pre tightening contact area: This makes external hexagonal bolts more suitable for use on large equipment.
3. Widely applicable: Suitable for various occasions, including environments that require high strength and corrosion resistance.
Application scope:
Hexagonal bolts are widely used in various industries such as construction, machinery, electronics, ships, and automobiles. They are typically used in connection applications that require high strength and reliability, especially in environments that are subjected to impact, vibration, or alternating loads.
Overall, external hexagonal bolts have been widely used in multiple industries due to their simple structure, low cost, and high reliability.
Product Parameters
| Diameter (d) |
thread (p) |
k |
s |
| min |
max |
min |
max |
| M3 |
0.5 |
2.2 |
1.9 |
5.5 |
5.25 |
| M4 |
0.7 |
3 |
2.8 |
7 |
6.75 |
| M5 |
0.8 |
3.74 |
3.26 |
8 |
7.85 |
| M6 |
1 |
4.24 |
3.76 |
10 |
9.65 |
| M8 |
1.25 |
5.54 |
5.26 |
13 |
12.77 |
| M10 |
1.5 |
6.69 |
6.38 |
17 |
16.72 |
| M12 |
1.75 |
7.79 |
7.41 |
19 |
18.58 |
| M14 |
2 |
9.09 |
8.76 |
22 |
21.66 |
| M16 |
2 |
10.29 |
9.91 |
24 |
23.66 |
| M18 |
2.5 |
11.79 |
11.57 |
27 |
26.68 |
| M20 |
2.5 |
12.82 |
12.52 |
30 |
29.52 |
| M22 |
2.5 |
14.22 |
14.12 |
32 |
31.64
|
| M24 |
3 |
15.11 |
15.01 |
36 |
35.47 |
| M27 |
3 |
17.32 |
16.91 |
41 |
40.32 |
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