Finish:Passivated,Black ,Zinc,blue zinc Material:Stainless Steel,Carbon Steel 1) Various kinds of machine screws are available 2) Can be made with different tensile strength, such as Grade1,Grade5 3) Can be supplied with different finish, such as bright, zinc plated, black 4) Can be made with different standards, such as ISO, DIN, ANSI, BS and special standard according to the drawings.
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