Material: Carbon steel
Property classes: 4, 8, 10, 12
Surface finishes: Plain, blue-white zinc plated, yellow zinc plated, hot-dip galvanized, black oxide, Dacromet
High-strength black oxide slotted nuts offer high material hardness and strong load capacity. The slot design accommodates cotter pins for secure anti-loosening and resistance to thread stripping. Efficient installation without complex tools. Professional black oxide anti-rust treatment provides excellent oxidation and corrosion resistance, effectively extending service life. Suitable for heavy machinery, industrial frames, assembly line equipment, heavy-duty components, and other applications. High cost-performance, meeting high-strength fastening and anti-loosening requirements.