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| Customization: | Available |
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| Material: | Carbon Steel |
| Type: | Hexagon Head |
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| 1.Standard: | DIN6923 |
| 2.Grade: | 6, 8, 10, 10.9 |
| 3.Mark: | According to customer's requirement. |
| 4.Size: | M3-M24 |
| 5.Material: | Low, medium, high) Carbon Steel and alloy steel |
| 6.Surface treatment: | Plain, ZP, YZP, Black, H. D. G., Dacromet, Nickle/ Chrome plated |