Hexagon cap nut (Acorn nut) has a closed rounded dome top. After installation, it fully covers the bolt end.
It combines fastening, dustproof, waterproof and decorative functions. It protects exposed threads from scratches and rust.
Materials: Carbon steel, A2(304) / A4(316) stainless steel.
Surface treatment: Zinc plated, black oxide, bright polished.
Widely used for railings, furniture, machinery, doors & windows, vehicle parts.