Check the listing for details. 18Pcs Knurled Thumb Nuts, M3 M4 M5 M6 M8 M10 Round Knobs, Silver. Condition: New. Listed at 23.82 USD. Description:Material: Our knurled thumb nuts are made of carbon steel, with nickel plated in the surface, high-hardness, durable, wear-resistant, sturdy, not easy to rust or fade, with a flat head and round knurled body, which can be used for a long time.Advantages: The head has a knurled design to increase friction, and it is easy to install and remove by hand without any tools. The thread is deep, the tooth pitch is uniform, and the fastening force is good.Application: These knurled thumb nuts are widely used in the machinery industry, furniture fastening, 3D printing parts, etc. Great for items that need quick adjustments, use them to replace old ones.Specification:Material: Carbon SteelColor: SilverSurface: Nickel PlatedThread Size: M3x0.5mm, M4x0.7mm, M5x0.8mm, M6x1mm, M8x1.25mm, M10x1.