5 Pcs M6 304 Stainless Steel Metric Knurled Thumb Nuts for 3D Printer Heated Bed
Descriptions:M6 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.