Matlock: M6 S=10 Hex Protection Cap Polyethylene Black Protection Cover Metric Plastic Polyethylene Protecting Cover For Hexagon Bolts, Screws And Nuts MPN: M6 S=10 Hex Protection Cap Polyethylene Black Attributes: Box Quantity: 100 Colour: Black Compatable Nut Measurement: M6 Cover Diameter: 11mm Cover Type: Protecting Cap For Use On: Hexagon Nuts Hexagon Screws Hexagon Bolts Hex Nut Height: 6.9mm Material: Plastic Polyethylene Overall Height: 13.3mm