160 x Black Nut Covers, M4 M5 M6 M8 M10 M12 Hex Bolt Cover Protection Screw Cap Nut Cap

Includes black nut covers in 6 sizes, M4 x 7, M5 x 8, M6 x 10, M8 x 13, M10 x 17, M12 x 18, 160 pieces in total, can meet your different needs. Hex nut cap are good for protecting screws from rust, water, dust, etc., which prolongs the service life, covers the screw heads and improves the appearance. You just need to put the correct size screws into the hole for screw head cover and press hard, which one person can easily do. Screw nut cover are made of nylon, smooth surface without burr, scratch resistant, durable and not easy to deform. With storage box: different sizes of hexagonal screw protectors are placed separately in the plastic box to avoid confusion, easy to carry and use.