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HANSAN SCREW CO., LTD.
HANSAN SCREW CO., LTD.
Hex Flange Head Bolt
						

						| Material | Carbon steel for heading, Structural alloy steel | (Strength type : 4.8), (Strength type : 10.9) | 
| Precision class | JIS 6g | JIS 6g | 
| Surface treatment | Rust preventive, Black oxide coating | (Strength type : 4.8), (Strength type : 10.9) | 
Hexagon groove can be subject to inner chamfering
