Hex Hexagon Socket Button Head Screw Nut Black Carbon Steel M2 M2.5 M3 M4 M5 M6 M8 Allen Round Head Screw Set Bolt and Nut Set
Size: As Specification below High quality: Made from 10.9 grade carbon steel, finish black-oxide, mildly corrosion resistant in dry environments, these screws are nearly twice as strong as stainless steel button head screws. Length is measured from under the head. Application: Widely used in 3D printer components, household, industrial machinery, automobiles, construction, smart equipment; Storage: These screws stored in a transparent plastic box, easy to use.
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