DIN6915 Steel Structural Hex Nuts Manufacturer in China
DIN6915 is a standard specification for high-strength hexagon nuts with a large width across flats. These nuts are often used in heavy-duty applications, such as construction, machinery, and engineering, where strong and secure fastening is required. The DIN 6915 hex nuts are designed to distribute the load and provide better resistance to loosening due to vibrations or dynamic forces. They are typically made from high-strength materials and are used in conjunction with high-strength bolts in various industries.
Specification of DIN6915 Structural Hex Nuts:
| Product name | DIN6915 Structural Hex Nuts |
|---|---|
| Diameter | M12-M36 |
| Thread | Coarse thread |
| Class | 10 |
| Material | C45 |
| Manufacturing Process | wire drawing, cold heading/hot forging, thread rolling, heat treatment, surface treatment |
| Surface treatment | Black Oxide Coating/Zinc Plating (Electroplating)/Hot-Dip Galvanizing/Mechanical Galvanizing/Dacromet Coating/Painting or Powder Coating |
| Application Industry | Construction/Machinery/Automotive/Infrastructure/Electrical and Electronics/Furniture/Marine and Offshore |
Mechanical properties DIN6915 Nuts:
| Thread D | Class 10 |
|---|---|
| M5 ≤ D ≤ M16 | 272-353 HV |
| M16 < D ≤ M39 | |
| M5 ≤ D ≤ M16 | 259-336 HV |
| M16 < D ≤ M39 | |
| M5 ≤ D ≤ M16 | 26-36 HRC |
| M16 < D ≤ M39 |
Chemical Composition for DIN6915 Nuts:
| Property class | Material and heat treatment | Chemical composition limits (cast analysis, %) a |
|||
|---|---|---|---|---|---|
| C (max) | Mn (min) | P (max) | S (max) | ||
| 10 | Carbon steel (quenched and tempered) | 0.58 | 0.30 | 0.048 | 0.058 |
Surface treatment of DIN6915 Hex Nuts:
Shall apply with regard to hot dip galvanizing refer DIN 267 part 10.
Manufacturing Quality Control of DIN6915 Hex Nuts:
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| Control Method | Detail |
|---|---|
| Material Inspection: | Verify the material's composition, heat treatment, and quality upon receipt. Conduct metallurgical analysis to ensure the material properties meet the standards. |
| Process Control: | Implement strict process control measures for heat treatment, machining, threading, and any other manufacturing steps. Maintain consistent process parameters to ensure uniform quality. |
| Inspection Points: | Introduce inspection points at various stages of manufacturing to check for defects, dimensions, and quality. Inspect threading, dimensions, surface finish, and other critical parameters. |
| Sampling and Testing: | Regularly sample products for testing, such as tensile testing, hardness testing, and metallurgical analysis, to ensure they meet the required specifications. |
| Thread Inspection: | Thoroughly inspect threading using proper thread gauges to ensure accurate dimensions and fit with mating components. |
| Traceability: | Implement a traceability system to track each fasteners journey from raw material to final product. This aids in accountability and recalls if necessary. |