National standard pure brass hexagonal screw copper bolt copper material screw M4M5M6M8M10M12M14M14M
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| Surface treatment | true colors |
| brand | Tianzhuo Hardware |
| product grade | A-level |
| Main sales regions | China |
| Is it a cross-border export exclusive source of goods | No |
| Material | copper |
| Usage | Fastener connection |
| Standard Number | DIN933 |
| strength grade | Level 4.8 |
| Applicable Industries | Construction industry, general equipment manufacturing, solar power generation |
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