◼Standard Type : DIN916. ◼Size : M2 M2.5 M3 M4 M5 M6. ◼Eg : M2 4=Thread Size 2mm Tooth Length 4mm, And So On. ◼Category : Hexagon Socket Set Screws. 1.Chromium-Molybdenum Steel Is An Alloy Structural Steel With High Strength And Hardness, Capable Of Withstanding Large Tensile Forces.
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