Brass Knurled Thumb Nuts, M4x0.7mm Round Stepped Knobs Fasteners for 3D Printer, Electronic Equipment 24Pcs 80 Grits outer diameter is 22mm and

outer diameter is 22mm and the width is 7mm

Put the sink plug into the sink hole and connect with the drain pipe

smooth metal or plastic without glitch or sharp edges

Total Size(Approx

Brass Knurled Thumb Nuts, M4x0.7mm Round Stepped Knobs Fasteners for 3D Printer, Electronic Equipment 24Pcs 80 Grits outer diameter is 22mm andDescription: 1. Made of brass, this thumb nut knob is good for needs requiring high appearance, has corrosion resistance, rust resistance, good wear resistance, well fastening function and long lasting service than other material. 2. Applied in home appliances, communications industry, automotive industry, etc. Widely used in the installation, maintenance, and fixing of various daily needs: such as 3D printer beds, mechanical assemblies, machine