Dongguan Yuhuang Electronic Technology Co., Ltd. is a leading China-based manufacturer, supplier, and factory of high-quality screws, including the waterproof screw and o-ring groove screw. Made using top-quality materials, these screws offer excellent resistance to water, moisture, and dust, and are ideal for use in a wide range of applications. The waterproof screw comes with a rubber seal that provides an airtight and watertight seal, making it perfect for outdoor use, in humid or moist environments, and in applications that require protection against water and dust. The o-ring groove screw incorporates an o-ring element that provides a secure seal and improved sealing performance. Both screws are available in various sizes and dimensions to suit your specific needs and requirements and are designed to withstand the rigors of constant use and exposure to harsh weather conditions. At Dongguan Yuhuang Electronic Technology Co., Ltd., we pride ourselves on providing our customers with the best quality products at the most competitive prices. So if you're looking for a reliable supplier of waterproof screws and o-ring groove screws, look no further than us.