| Finish | Black Oxide | Material | Steel, 20MnTiB |
| Place of Origin | Hebei, China | Brand Name | TIANHOU |
| Model Number | DIN7991 | Standard | DIN |
| Product name | Hexagon Socket Countersunk Head Bolt | Grade | 4.8/ 8.8/ 10.9/ 12.9 |
| Surface treatment | Black Oxide | Certificate | ISO9001:2015 |
| Head type | Countersunk Head | OEM | Accpet |
East Side Of Jianshe Road, Southwest Industrial Park (South Side Of Guangfu Street), Handan, Hebei, China