Product Details:Color: BlackMaterial: Carbon SteelThread Type: Full ThreadSize (Dia*Pitch*Length):10pcs x M4-0.7x20mm/ M4-0.03"x0.79"10pcs x M4-0.7x25mm/ M4-0.03"x0.98"10pcs x M4-0.7x30mm/ M4-0.03"x1.18"10pcs x M4-0.7x35mm/ M4-0.03"x1.38"10pcs x M4-0.7x40mm/ M4-0.03"x1.57"Package Content: 50pcs x Button Head Hex Socket ScrewsMaterial - Constructed with carbon steel material with blackening treatment, these hex socket cap screws are of stronger durability, has a bright appearance, is not easier to deform or corrode, and has a long service life than other surface finishes..
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