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Product
Carbon Steel Hexagon Flange Head Bolt
Material: Carbon steel
Grade: GR4.8, GR8.8
Finish: Galvanized
Standard: DIN6921
Certification: ISO9001
MOQ:1000PCS
Samples: Free
Place of Origin: Zhejiang China
Product Details
The unique head styling not only gives fantastic good looks but also provides a functional element as the washer base spreads the load.These are also machined with rolled threads to give extra strength and a smoother finish.Flange bolts virtually eliminate the need for washers because the area under the bolt head is wider and creates a larger area for even distribution of pressure
| Gr8.8 Chemical Composition(%) | |||||
| Grade | C | Mn | Si | S | P≤ |
| 0.36 | 0.69 | 0.16 | 0.01 | 0.01 | |
| Mechanic Periormance | ||
| RM（mpa) | A(%) | Z(%) |
| 602 | 22.5 | 54 |
| DIN6921 | ||||||
| Screw Thread d | Pitch P | k | s | |||
| coarse thread | Fine therad-1 | Fine thread-2 | min | max | ||
| M6 | 1 | / | / | 6.6 | 9.78 | 10 |
| M8 | 1.25 | 1 | / | 8.1 | 12.73 | 13 |
| M10 | 1.5 | 1.25 | 1 | 9.2 | 14.73 | 15 |
| M12 | 1.75 | 1.5 | 1.25 | 11.5 | 15.73 | 16 |
| M14 | 2 | 1.5 | / | 12.8 | 17.73 | 18 |
| M16 | 2 | 1.5 | / | 14.4 | 20.67 | 21 |
