This is a hot-melt hot-pressed nut made of copper material. It has the characteristics of high hardness, rust-proof, wear-resistant, strong and practical. It can serve you well and bring you an excellent experience. It has a reasonable design, high efficiency and practicality, and can be firmly fixed. It can be installed in a threaded tapered hole by or heating, which will meet your needs well. Features - Color: Golden. - Material: Copper. - Size: 0.40X0.45X0.50cm/0.16X0.18X0.20inch. - Preferred copper materials, , safe, and practical. - The design is scientific, solid and practical, and can be easily to 3D printed parts. - The screw thread is accurate, the drawing force is strong, the anti-rust is practical, and the texture is excellent. - Fine workmanship, efficient and practical, with good working performance, can better serve you. - Excellent for money, you can buy this simple and practical hot melt nut at an . Package list: embedment nuts