1.Made of nylon, good toughness, anti-corrosion, anti-aging, suitable for indoor, outdoor or humid environment.<br />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.<br />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.<br /> <br /><b>Specification:</b><br />Material: Nylon<br />Thread Standard: Metric<br />Thread Size: M3 x 0.5mm<br />Hex Width: 6mm / 0.24"<br />Hex Thickness: 3mm / 0.12"<br />Total Height: 6mm / 0.24"<br /> <br /><b>Package Content:</b><br />20 x Cap Nuts<br />