Grey hexagonal nut caps made from polyethylene, designed to protect and cover hexagonal nuts. Available in multiple sizes: M4, M5, M6, M8, M10, M12, M16, M20. Material: Polyethylene. Sold by units. Free shipping on orders over €70 (including tax). 30-day satisfaction guarantee or your money back. Average observed delivery time: 2-4 days (express on request). Category: Fasteners.