Description:

[Knurled Thumb Nuts] - Thread Size: M4; Pitch: 0.7mm. [Size] - 12mm x 8mm/0.47" x 0.31"(D*H). [Material] - Made of iron material that is high hardness, no rust and perfect corrosion resistance.. [Easy to Use] - This nut with knurled surface that can be easily tightened, assembled and disassembled by hand without any tools.. [Application] - Commonly found on 3D printer beds, machine tools, cabinets, toolboxes, great for crafting projects and things that require quick adjustments..