HANSAN SCREW CO., LTD.

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HANSAN SCREW CO., LTD.

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Hex Socket Head Cap Bolt

Strength type 12.9 10.9 8.8
Material Structural alloy steel Structural alloy steel Structural alloy steel, structural carbon steel
Hardness(HRC) 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


 

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