7121 Internal and External Lock Washers

Manufactured by Eastern MC Parts, these zinc-plated lock washers are designed to withstand the rigors of Harley-Davidson operation. These fasteners are used in numerous locations across the motorcycle to lock nuts and bolts in place, preventing them from vibrating loose over time. This specific hardware replaces OEM 7121 and features a durable finish to resist the elements. Eastern MC Parts has a long-standing reputation for producing accurate hardware for classic and modern V-twins. These internal and external lock washers are sold in packs of 100, ensuring a steady supply for any workshop environment or extensive restoration project.