Good performance: Our products have 6 sides that provide good granularity of the angles from which a tool can approach. Long service life: Our hex nut is made of high-quality galvanised carbon steel, stable and durable, professional manufacturing, high reliability. Quality assurance, long service life. 【Strong Applicability】This hex nut is used for attaching bolts, stud bolts or machine screws to attach two parts to one piece. 【Easy Installation】This useful hex nut is lightweight, small, space-saving and easy to install. And these hex nuts are a great replacement for industrial and construction fixings. Wide application: our products can be used in household and office appliances, communication equipment, ship assembly and other machinery.