4mm Serrated Wheel Locknut (Blue) (4) by Pro-Line
This is a pack of four optional Pro-Line 4mm Serrated Wheel Lock Nuts, and are intended for use with vehicles with 4mm axles. These Pro-Line Blue Anodized Aluminum Nuts have deep serrations that dig into the wheel and provide a secure hold against the rigors of racing and bashing. The second layer of protection delivered by these Pro-Line serrated nuts is the nylon lock ring that prevents the nuts from loosening due to vibration and centrifugal effects.
This product was added to our catalog on December 7, 2012