S45,40Cr material or better material used on construction machinery,Size: M12-M33,Hardness: HRC26-36

We just offer8.8,10.9 & 12.9 grade high tensile forged fasteners and auto parts with S40Cr material or better material used on construction machinery & auto.also we supply all kinds of applicable and high quality forging parts according to clients’ drawings or samples.

Size: M12-M33Hardness: HRC26-36Plating: Hexavilent Plating (Zinc Plating, Rainbow)With 45C,S40Cr material or better material,

bolts for 10.9/12.9class,tensile strength 170,000psi

  

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