YOUR TRUSTED FASTENER RESOURCE
HANSAN SCREW CO., LTD.
All Products
Hex Head Bolt
| Strength Type | 8.8 | 10.9 | 12.9 |
| Material | Structural alloy steel | 32~39 HRC | 39~44 HRC |
| Hardness | d≦16 22~32 HRC, d＞16 22~34 HRC | JIS 6g | JIS 6g |
| Precision class | JIS 6g | JIS 6g | JIS 6g |
| Surface treatment | Black oxide coating | Black oxide coating | Black oxide coating |
