Feature:for: RC Airplane,FPV Quadcopter,CNC,etc.Surface with mesh texture design, lightweight, strong hardness, secure.It can be used for connecting rod, pulling rod or the top column, play the role of connecting or extending nut.Specifications:Two Side Female ThreadMaterial: Aluminum alloyInner Screw Thread: M3Total Length: 15 mm/0.59 inchOuter Diameter: 5 mm / 0.2 inchColor: BluePackage Content:10 x Aluminum Standoff