MSI has been the main supplier to NASCAR Teams for over 2 decades. If you have ever witnessed a NASCAR pitstop and watched those lug nuts flying off during a tire change, more than likely it was an MSI Racing Lug Nut. Today, MSI supplies most of the OEM backed Factory Racing Efforts in IMSA Competition as an OEM Supplier to most of the field. We are able to offer that same technology and history with these purpose built Racing Lug Nuts for our Racing Customers. Manufactured in the USA from high quality materials, precision machining, heat treating and finished off with a proprietary low friction coating process that gives these lug nuts a distinct satin black finish so they look cool enough to run them on the street.

During manufacturing, MSI CNC machines every lug nut, controlling the thread class to a very tight tolerance along with a precision machined 60 degree conical seat the lug nuts will not bind on the wheel studs. These lug nuts are machined off of a common center so they seat into the wheel squarely and consistently, loading the wheel stud perpendicular to the hub surface thereby greatly minimizing any chances of fatigue failures due to side loading and inconsistent torque values. These are not stamped in some off shore factory with unknown materials. MSI Racing Lug Nuts are CNC Machined in North Carolina from specific traceable material, one at a time. 

Due to the strength of the lug nut we are able to offer these with a 19MM (3/4") Hex size vs the larger 21MM (13/16") size so they can be used on most wheel designs that have very compact lug nut pockets. These lug nuts will also survive heavy use of an impact wrench without distorting the wrench flats. The Wrench flats are also precision machined and held to a tight tolerance so sockets fit properly, easily and will not round off and get stuck in the socket. These lug nuts also feature a radiused entry cone to further reduce cross threading, This feature also prevents lug nuts that are glued on from falling off the wheel during a pit stop.

These are the same lug nuts that are supplied and used in competition on the Ford Racing Dark Horse R Mustang

***These are Racing Lug Nuts with a low friction coating. Lubricants are not required and strongly discouraged. Threads may be cleaned periodically with a brush and lightly wiped down with a light lubricant such as WD40 for corrosion resistance. If you are using these on very used wheel studs with damaged or worn threads please replace your wheel studs. Please keep in mind most modern cordless 3/8" Impact wrenches have the capability to produce very high torques. Use a quality torque instrument for reaching the final torque not verifying that your impact wrench possibly over torqued the fasteners. As with any new installation the installer and user accept full responsibility for proper installation, care and use of our Racing Products***