NINGBO YONGBIAO FASTENER CO.,LTD
| Place Of Origin | CHINA |
| Packaging Details | Carton Box/PE Bag |
| Delivery Time | 7-45Days |
| Payment Terms | T/T |
| Trademark | YB |
| Material | Steel |
| Application Scope | Automobile Industry |
| Type | DIN6921 Hex Head Flange Bolt |
| Shape | Hex With Flange Head |
| Thread Type | Coarse |
| Project | DIN6921 |
| Customized | Available |
| Brand Name | YONGBIAO |
| Model Number | GB/DIN/ISO |
| Certification | ISO9001 |
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Product Specification
| Place Of Origin | CHINA | Packaging Details | Carton Box/PE Bag |
| Delivery Time | 7-45Days | Payment Terms | T/T |
| Trademark | YB | Material | Steel |
| Application Scope | Automobile Industry | Type | DIN6921 Hex Head Flange Bolt |
| Shape | Hex With Flange Head | Thread Type | Coarse |
| Project | DIN6921 | Customized | Available |
| Brand Name | YONGBIAO | Model Number | GB/DIN/ISO |
| Certification | ISO9001 | ||
| High Light | Class 4.8 DIN6921 flange bolt ，Hexagon head flange bolt 12.9 ，Hex head bolt DIN6921 | ||
DIN6921 Hexagon Head Flange bolt is a type of hexagon head bolt with a built-in flange. It combines the easy operation characteristics of hexagon bolts with the anti-slip fastening advantages of flange structures. This design allows for stable connections without the need for additional gaskets.
The bolt head is a standard hexagonal shape, compatible with tools such as wrenches, making it easy to quickly tighten and disassemble.
The lower part of the head is integrally formed with a ring-shaped flange surface, some of which have anti-slip serrations to enhance the locking effect.
The rod is designed with full or half threads according to the connection requirements to ensure effective engagement with the nut.
Other standards: German DIN 931/933, American ANSI B18.2.1, etc.
| Screw Thread | M5 | M6 | M8 | M10 | M12 | M14 | M16 | M20 | ||
| P | Pitch | Coarse thread | 0.8 | 1 | 1.25 | 1.5 | 1.75 | 2 | 2 | 2.5 |
| Fine thread-1 | / | / | 1 | 1.25 | 1.5 | 1.5 | 1.5 | 1.5 | ||
| Fine thread-2 | / | / | / | 1 | 1.25 | / | / | / | ||
| b | L≤125 | 16 | 18 | 22 | 26 | 30 | 34 | 38 | 46 | |
| 125＜L≤200 | / | / | 28 | 32 | 36 | 40 | 44 | 52 | ||
| L＞200 | / | / | / | / | / | / | 57 | 65 | ||
| c | min | 1 | 1.1 | 1.2 | 1.5 | 1.8 | 2.1 | 2.4 | 3 | |
| da | Form A | max | 5.7 | 6.8 | 9.2 | 11.2 | 13.7 | 15.7 | 17.7 | 22.4 |
| Form B | max | 6.2 | 7.4 | 10 | 12.6 | 15.2 | 17.7 | 20.7 | 25.7 | |
| dc | max | 11.8 | 14.2 | 18 | 22.3 | 26.6 | 30.5 | 35 | 43 | |
| ds | max | 5 | 6 | 8 | 10 | 12 | 14 | 16 | 20 | |
| min | 4.82 | 5.82 | 7.78 | 9.78 | 11.73 | 13.73 | 15.73 | 19.67 | ||
| du | max | 5.5 | 6.6 | 9 | 11 | 13.5 | 15.5 | 17.5 | 22 | |
| dw | min | 9.8 | 12.2 | 15.8 | 19.6 | 23.8 | 27.6 | 31.9 | 39.9 | |
| e | min | 8.71 | 10.95 | 14.26 | 16.5 | 17.62 | 19.86 | 23.15 | 29.87 | |
| f | max | 1.4 | 2 | 2 | 2 | 3 | 3 | 3 | 4 | |
| k | max | 5.4 | 6.6 | 8.1 | 9.2 | 11.5 | 12.8 | 14.4 | 17.1 | |
| k1 | min | 2 | 2.5 | 3.2 | 3.6 | 4.6 | 5.1 | 5.8 | 6.8 | |
| r1 | min | 0.25 | 0.4 | 0.4 | 0.4 | 0.6 | 0.6 | 0.6 | 0.8 | |
| r2 | max | 0.3 | 0.4 | 0.5 | 0.6 | 0.7 | 0.9 | 1 | 1.2 | |
| r3 | min | 0.1 | 0.1 | 0.15 | 0.2 | 0.25 | 0.3 | 0.35 | 0.4 | |
| r4 | ≈ | 3 | 3.4 | 4.3 | 4.3 | 6.4 | 6.4 | 6.4 | 8.5 | |
| s | max=nominal size | 8 | 10 | 13 | 15 | 16 | 18 | 21 | 27 | |
| min | 7.78 | 9.78 | 12.73 | 14.73 | 15.73 | 17.73 | 20.67 | 26.67 | ||
| t | max | 0.15 | 0.2 | 0.25 | 0.3 | 0.35 | 0.45 | 0.5 | 0.65 | |
| min | 0.05 | 0.05 | 0.1 | 0.15 | 0.15 | 0.2 | 0.25 | 0.3 | ||
Adhesive products are commonly applied across diverse industries, including automobiles, machinery, construction, home appliances, and pipeline engineering.
For instance, they play a crucial role in securing automotive chassis and engine components, facilitating the connection between the shell and bracket in mechanical equipment, ensuring the sealing and fastening of pipeline flanges, as well as aiding in the assembly of internal structures within household appliances like washing machines and air conditioners.
Company Details
Business Type:
Manufacturer,Exporter,Trading Company
Year Established:
2012
Total Annual:
5000000-6000000
Employee Number:
45~53
Ecer Certification：
Verified Supplier
Ningbo Yongbiao Fastener Manufacturing Co., Ltd. is located in Ningbo, the second largest port city in China. The factory is 50 kilometers away from Ningbo Port and can reach the sea freight warehouse in one hour, with very fast logistics. The company was founded in 2012 and after years of hard work... Ningbo Yongbiao Fastener Manufacturing Co., Ltd. is located in Ningbo, the second largest port city in China. The factory is 50 kilometers away from Ningbo Port and can reach the sea freight warehouse in one hour, with very fast logistics. The company was founded in 2012 and after years of hard work...
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