M4-M56 half threaded bolts DIN931 m30 grade 8.8 hex head hollow bolt
| Product Name | hex head hollow bolt |
| Size | M4-M56,etc |
| Length | 12-300MM,etc |
| Packing | General packing or customer packing |
| Delivery time | 30-40 Days |
| Port | Shanghai/Ningbo |
| Sample | Free |
| Material | 35#,45#,40Cr,35CrMoA,42CrMoA,etc |

