Handan Ruimao Hardwares Manufacturer Co., Ltd. is a renowned China-based manufacturer, supplier, and factory of high-quality heavy hex coupling nuts. Our coupling nuts are designed to provide exceptional sealing capabilities and reliable joint connections for a variety of industrial applications. Our heavy hex coupling nuts come in a range of sizes, from 1/4 to 4, and are made from premium grade materials to ensure strength and durability. Our coupling nuts are ideal for applications that require the joining of two threaded rods or pipes, such as in construction, plumbing, machinery, and other industrial uses. Our products are ISO 9001 certified and conform to all industry standards, ensuring you receive the highest quality heavy hex coupling nuts. At Handan Ruimao Hardwares Manufacturer Co., Ltd., we take great pride in providing our customers with exceptional service and superior products. Our team of experts is always available to assist you in selecting the right coupling nut for your specific application. Contact us today to learn more about our products and services.