Lock Nut Metric

18 products

Lock Nut Metric for Harley-Davidson provides metric-threaded lock nuts engineered for secure fastening on Harley-Davidson motorcycles and associated accessories. Lock nuts prevent loosening caused by engine vibration, making them essential for safety-critical and high-stress applications. Supplied through Iron City Motorcycles, an authorised Harley-Davidson dealer, this range is stocked exclusively from Gardner-Westcott, a specialist in premium motorcycle fasteners. Whether you are securing components on a Sportster, Softail or Touring model, you will find a comprehensive spread of metric thread sizes in zinc-plated, chrome and stainless steel finishes. Each nut features a nylon insert or prevailing-torque design that maintains clamping force through thousands of miles of riding. Browse the full range below.