The hexagon insert locknut is convenient and practical, with excellent texture, and without being easily damaged. The craftsmanship can serve you well without breaking easily. This is a very practical hexagon insert locknut. Features -Color:Silver -Material:304 stainless steel, nylon -Size:2.00X1.80X1.20cm/0.79X0.71X0.47in Thickness:12mm - Smooth and no burrs, sturdy and to use. Clean thread, even force and not easy to slip. - Can effectively prevent the connection from loosening and is a very effective tightening nut. - The lock nut can ensure safe fixing and effectively reduce the possibility of sliding. - It has a wide range of uses and can be well applied to the fastening of various equipment parts, and it is very practical. - workmanship, reasonable structure, professional and practical, can bring you convenience. Package list: 20 x lock nuts