Basic Product Information
- Product Name: DIN 6923 Hexagon Flange Head Bolts (Hexagon Head Bolts with Washers)
- Standard: DIN 6923
- Common Strength Grades: Carbon Steel, Grade 4.8 / Grade 8.8 / Grade 10.9
- Material: Low-carbon steel, medium-carbon steel (quenched and tempered)
- Surface Treatment: Galvanized (blue-white zinc / colored zinc / black zinc), blackened, Dacromet
- Thread Type: Metric coarse thread, primarily fully threaded
- Flange Base: Serrated (anti-slip teeth) / Smooth (optional)
Product Features
- Includes a flange washer, eliminating the need for spring washers and flat washers: The one-piece flange design enables faster installation, reduces the number of components, lowers costs, and improves assembly efficiency.
- The flange features anti-slip teeth for excellent anti-loosening performance: The flange increases the contact area, and the teeth grip the workpiece surface to resist vibration and prevent loosening, making it suitable for high-vibration equipment.
- High torque capacity and easy installation: Can be tightened directly with an open-end wrench or socket wrench, ensuring stable torque transmission and making it suitable for industrial mass assembly.
- Multiple strength grades available for a wide range of applications: Grade 4.8 for general-purpose, economical use; Grade 8.8/10.9 for high-strength, heavy-duty applications, meeting the demands of various operating conditions.
- DIN standard dimensions, globally compatible: Consistent dimensional accuracy and high interchangeability, widely used in European standard equipment, automotive, machinery, agricultural machinery, and other fields.
Typical Applications
- Fastening in automobiles, motorcycles, engines, and chassis
- Assembly of construction machinery, agricultural machinery, and machine tools
- Electric motors, fans, pump housings, and air conditioning compressors
- Steel structures, racks, metal frames, and heavy-duty equipment
- Fastening applications subject to high vibration, prone to loosening, or in confined spaces
DIN 6923 Standard Dimensions Table (mm)
Key Dimensional Parameters
|
Thread Specifications |
Pitch P |
Flange Width S |
Flange Diameter D |
Head Height K |
Internal Hex Flange |
|
M5 |
0.8 |
8 |
11.8 |
5.2 |
- |
|
M6 |
1.0 |
10 |
14.2 |
6.2 |
- |
|
M8 |
1.25 |
13 |
17.9 |
8.3 |
- |
|
M10 |
1.5 |
16 |
22.8 |
9.8 |
- |
|
M12 |
1.75 |
18 |
26.5 |
12.0 |
- |
|
M14 |
2.0 |
21 |
30.5 |
13.5 |
- |
|
M16 |
2.0 |
24 |
34.5 |
15.5 |
- |
Common length series (mm)
10,12,16,20,25,30,35,40,45,50,55,60,65,70,80
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