Used for fastening to a bolt when mechanically joining materials together and preventing loosening from vibration or back off. The hexagonal shape provides increased leverage for use with a wrench during installation and disassembly. Premium SUS304 stainless steel ultimate rust and weather resistance. Specification:Material: SUS304 Stainless SteelSurface Treatment: VibrationThreaded: G3/4"Hex Width: 30mm / 1.18"Height: 4mm / 0.16" Package Content:2 x Pipe Fitting Hex Locknuts
