DescriptionThese lock nuts are made of carbon steel materials, strong and durable, with excellent texture, and can serve you for a long time without being easily damaged or deformed. It has a simple design and practical functions, can play an excellent fastening effect and excellent stability, and will not easily loosen. This is a very practical fastening screw, which will serve you well.Features- Color: Black.- Material: Carbon Steel. - Size: 19.00X13.00X2.10 cm/ 7.47X5.11X0.83 inch. - It is made of cartoon steel material, safe to use, sturdy and durable. - With excellent stability and fastening effect, it can bring convenience to your work. - It is made with excellent craftsmanship, has excellent texture, and has excellent anti-rust performance. - The high-strength hexagonal screw set has practical functions and can meet your needs. - Simple and practical, easy to install, you can use it with confidence