Nuts Hex Usa Sizes

43 products

Nuts Hex Usa Sizes for Harley-Davidson provide the proper thread pitch and hex dimensions for authentic American motorcycle restoration and maintenance. As an Iron City authorised Harley-Davidson dealer, we stock hex nuts from Gardner-Westcott and MCS in standard USA sizes. These fasteners service models from 1941–2007 Big Twins and XL Sportsters, ensuring your hardware matches original specifications. Whether you need exhaust to head nuts for 1984–2025 Big Twins and 1986–2022 Sportsters, or specialised hardware for vintage 1937–1973 45 inch Flathead models, proper USA hex nuts are essential for authenticity. Using correctly sized fasteners prevents thread damage and maintains the integrity of your assembly. Each nut is manufactured to precise tolerances for reliable performance on your Harley-Davidson. Browse the full range below.