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HANSAN SCREW CO., LTD.
HANSAN SCREW CO., LTD.
Hex Socket Flat Head Cap Bolt
Strength type | SCM435 | 10.9 | 8.8 |
Material | Structural alloy steel | Structural alloy steel | Structural alloy steel, structural carbon steel |
Hardness | 39~44 | 32-39 | D≤16 22~32 d>16 23~34 |
Precision class | JIS 5g 6g | JIS 6g | JIS 6g |
Part grade | A | A | A |
Surface treatment | Black oxide coating | Black oxide coating | Black oxide coating |