1/2/5pcs M3 M4 M5 M6 M8 M10 M12 Black Grade 12.9 Steel Lengthened Long Allen Hexagon Hex Socket Cap Head Screw Bolt Half Thread

1/2/5pcs M3 M4 M5 M6 M8 M10 M12 Black Grade 12.9 Steel Lengthened Long Allen Hexagon Hex Socket Cap Head Screw Bolt Half Thread

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