Flange Nut

This stainless steel flange nut combines a hexagonal nut body and an integrated smooth flat flange without serrated teeth. The one-piece flange replaces separate washers, simplifying assembly procedures and distributing fastening pressure evenly over the workpiece surface to avoid indentation damage.

Made of premium 304 stainless steel, the nut features inherent rust, acid and salt fog resistance. After polishing and passivation treatment, the surface forms a stable protective film, delivering long-lasting anti-corrosion performance in coastal, damp and mild chemical working environments. The smooth flange surface will not scratch painted, polished or soft metal workpieces during tightening.

The six-sided outer hexagon fits standard spanners and sockets for easy torque control. Precisely rolled internal threads match metric bolts perfectly, providing consistent clamping force with excellent repeat disassembly performance. The integrated flange enlarges the bearing area, lowering surface pressure and preventing nut sinking on thin panels.

Stainless steel smooth flange nuts are widely used in marine fittings, outdoor solar brackets, bathroom sanitary products, food machinery and chemical pipeline assemblies. It is the ideal fastener for corrosion-resistant projects requiring scratch-free contact surfaces.

We offer full customized production services, including adjustable thread specifications, flange thickness and outer diameter. Laser marking brand logos can be engraved on nut surfaces for hardware distributors and industrial equipment manufacturers.

All finished flange nuts undergo strict quality testing before shipment, including dimensional inspection, thread precision test, flatness test and salt spray anti-corrosion verification, to ensure precise thread fit, smooth flawless flange surface and stable long-term rust resistance for every production batch.