M4 Cap Nut Hex Acorn Dome Head Nuts for Screws Bolts Nylon Black 20 Pcs

1.Made of nylon good toughness anti-corrosion anti-aging suitable for indoor outdoor or humid environment. 2.These caps cover nuts provide effective protection against injure and weathering and improve the finished appearance of your product. Easy to fit and to remove. 3.Nuts are internally threaded fasteners that are used with bolts threaded rods and studs to connect components.Suitable for mechanical equipment electronic equipment communication equipment hardware lighting and so on. Specification: Material: Nylon Thread Standard: Metric Thread Size: M4 x 0.7mm Hex Width: 7mm / 0.28 Hex Thickness: 3mm / 0.12 Total Height: 7mm / 0.28 Package Content: 20 x Cap Nuts