| Material: | Carbon Steel |
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| Type: | Hexagon Head |
| Connection: | Common Bolt |
| Head Style: | Hexagonal |
| Standard: | DIN, ANSI, GB, JIS, BSW, GOST |
| Grade: | 5 |
| Samples: |
We will charge express fee first, and it can be de
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| Customization: |
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