Product Description Material: stainless steel + nylon Size: 1.511 cm Color: silver Quantity: 1 box Package content: 182 pieces * nut combination 1.【Applied Plastics】Nuts are designed for thermoplastics. Its function is to form high strength, corrosion resistant internal threads on the plastic parts to provide a base point for other parts. 2.【Easy handling】: High performance self-clinching nuts, Threaded Inserts are self-clinching nuts designed for later insertion into 3D printer parts. Press-in nuts can be easily embedded in blind or through-holes using ultrasound or hot (soldering iron). 3.【High quality material】: made of high quality, the material is environmentally friendly, with excellent rust resistance, corrosion resistance and thermal conductivity, long service life. 4.【precision construction】The nut design conforms to the standard metric system, the thread is smooth and has no burrs, and the thread is clear, which ensures balanced high tightening and loosening torque and