[Knurled Thumb Nuts] - Thread Size: M4; Pitch: 0.7mm
[Size] - 12mm x 8mm/0.47" x 0.3"(D*H)
[Material] - Made of 304 stainless steel 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.
Description
M4 304 stainless steel knurled nut, or thumb nut, is a nut with a knurled outside surface. This facilitates tightening by hand.The hand tightening leveling knurled thumb nuts thumbscrew for 3D printer heated bed..