YOUR TRUSTED FASTENER RESOURCE
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
