The Mittler Bros. Spindle Nut with Lock Ring — Right Hand is the right-hand thread spindle nut with integrated lock ring for Grand National and off-road rear hub assemblies. Left and right spindle nuts have opposite thread directions — using the correct nut for each side is critical for safe hub retention. The lock ring engages the spindle after torquing to prevent the nut from backing off under race loads.
Install and remove with the Mittler Bros. 12 GN Spindle Nut Socket (SKU 1400-013) for clean, damage-free service. For the left-hand version with lock ring, see SKU 1400-539. Made in the USA.
