Descriptions:Made of iron that is highly hard, has no rust, and has perfect corrosion resistance.This nut has a knurled surface that can be easily tightened, assembled, and disassembled by hand without any tools.Commonly found on 3D printer beds, machine tools, cabinets, and toolboxes, it is great for crafting projects and things that require quick adjustments. Product Specifications:Material: IronColor: BlackThread Size: M3Pitch: 0.5mmTotal Size: 11mm x 6mm/ 0.44inch x 0.24inch (D*H)Package Included:20Pcs x Knurled Thumb Nuts.
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