Durable Material Material: Made of carbon steel, with a dark surface treatment, anti-oxidation, wear-resistant, anti-corrosion, more smooth to use.
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Precision Screw Button Head Machine Screw, Hex Drive Universal metric thread.Universal metric thread. Standard hexagonal grooves, smooth surface, excellent material, sturdy and durable. Deep thread, smooth arc, wear-resistant and anti-rust, uniform force and anti-slip.
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Wide Application Application: Widely used for assembly and maintenance of fixing, home, machine tools, construction, marine and DIY projects. Suitable for household hardware, electrical products, mechanical equipment, shipbuilding and so on.
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