This Harley-Davidson speedometer and tachometer mounting nut is a genuine OEM part with part number 67310-74. It is a vintage part and fits perfectly with Harley Davidson bikes. The nut is in new old stock (NOS) condition and is in excellent working condition. It has an acorn shape and is easy to install. This mounting nut is a must-have for Harley Davidson enthusiasts who want to keep their bikes running smoothly.