These 304 stainless steel hex flange nuts are premium fasteners engineered for industrial and commercial fastening needs, adhering to UNC/UNF imperial standards and 6923/6177 specifications. Crafted from high-grade 304 stainless steel, these serrated non-slip nuts offer exceptional rust resistance, corrosion resistance and oxidation resistance, ensuring long-lasting performance in humid, outdoor or harsh working environments. Featuring an integrated hex flange design with serrated under-surface, these non-slip hex flange nuts deliver superior anti-loosening performance—effectively preventing rotation under vibration while dispersing clamping pressure to protect workpieces. The precision-threaded structure ensures smooth engagement with matching bolts, providing tight and reliable connections for critical assemblies. As professional 6923/6177 standard flange nuts, they are available in full UNC/UNF imperial sizes to meet diverse fastening requirements. Widely applied in automotive repairs, mechanical equipment, electronic devices, construction projects and outdoor installations, these 304 stainless steel serrated nuts excel in both indoor and outdoor scenarios. Each hex flange nut undergoes strict quality inspection for dimensional accuracy and mechanical strength, guaranteeing consistent durability and stable performance. Factory-direct supply with bulk stock, these 304 stainless steel non-slip hex flange nuts are the top choice for global hardware wholesalers, industrial buyers and DIY enthusiasts—offering cost-effective, high-reliability fastening solutions.