304 stainless steel hex flange nut, flange screw, lock nut, anti-loose screw cap

Product Specification

The core advantages of 304 stainless steel flange nuts are "material protection against loosening, corrosion and rust resistance, sealing and dust prevention, and wide adaptability."

1. The flange plate features a wide contact design, combining the dual effects of material protection and anti-loosening. The nut bottom comes with an integrally molded flange plate (with a diameter 50%-80% larger than the nut body), eliminating the need for additional flat washers. Installation is straightforward: protecting the substrate: the flange plate increases the contact area with the workpiece, evenly distributing the tightening pressure, preventing the nut from embedding into soft/thin-walled substrates such as wood, plastic, and thin metal, thus preventing substrate cracking, deformation, or indentation. It is especially suitable for vulnerable substrates such as photovoltaic panels and decorative panels; enhancing anti-loosening: the bottom surface of the flange plate often features anti-slip tooth patterns (or rubber washers, in some styles), which engage tightly with the surface of the workpiece, greatly increasing friction. Coupled with the self-locking nature of the threads, it is less prone to loosening under conditions such as equipment vibration and strong outdoor winds, providing an anti-loosening effect far superior to the combination of ordinary nuts and flat washers.
2. 304 stainless steel material, with a corrosion-resistant and rust-proof alloy composition containing 18% chromium and 8% nickel for all scenarios, forms a dense oxide film on the surface, which can resist the erosion of moisture, salt spray (non-coastal high concentration), mild acids and alkalis, and daily cleaning agents: outdoor scenarios (such as guardrails, street lamp poles, photovoltaic supports) remain rust-free after long-term use, avoiding thread jamming and disassembly difficulties caused by rusted carbon steel nuts; indoor humid scenarios (such as kitchen and bathroom pipe connections) have no risk of plating peeling, and will not contaminate workpieces or affect equipment operation due to rust stains; the material is non-magnetic, environmentally friendly, and non-toxic, suitable for scenarios requiring safety such as food machinery, children's playground equipment, and auxiliary components of medical equipment, with a service life 4-6 times that of carbon steel galvanized flange nuts.
3. Sealed and dustproof, protecting threads and extending their lifespan. The flange plate fits tightly with the workpiece surface, forming a "physical sealing layer" that blocks dust, oil, rainwater, and other impurities from entering the gap between the nut and the workpiece. This prevents the threads from being blocked or corroded by impurities, extending their lifespan. It is especially suitable for outdoor equipment, construction machinery, and other scenarios with high dust/moisture content, reducing the frequency of subsequent maintenance.

Shenzhen Huayuanxing Precision Hardware Co., Ltd. is a manufacturer specializing in the development, production, and sales of screw fasteners, with 20 years of industry experience. Huayuanxing screws are characterized by precision, miniaturization, and firmness. The company's existing factory covers an area of over 8,000 square meters, with a finished product warehouse of over 4,000 square meters and a stock inventory of over 3,000 tons. It has successively introduced more than 250 precision production equipment, including cold heading machines, thread rolling machines, and thread milling machines, capable of producing small screws with an outer diameter of 1mm and a length of 3mm, with an average daily production capacity of up to 20 million pieces. Huayuanxing has complete inspection equipment, including salt spray testing machines and 2D imaging detectors. It currently employs more than 50 people, including 8 engineering and technical personnel with 20 years of industry experience