For racing and track customers, Rogue Engineering is proud to offer our PRO wheel studs. Produced exclusively for Rogue Engineering, we wanted to ensure that not only would these incorporate unique features not found in our street/track studs but also incredibly strong.
Regular laboratory testing of our latest batch has shown that our PRO studs exceeded Grade 12.9 yield strength by an average of 14.6% and tensile strength by 10.6%. What does all these numbers mean? This means one of the strongest studs money can buy.
Yield Strength (lb/in2)
Tensile Strength (lb/in2)
What's with the M14 stud?Eagle eyed Rogue Engineering customers will notice that our new M14 studs (for F-Series cars) are constructed with M14 x 1.25 threads to go into the wheel hub but M14 x 1.5 thread on the exposed side. This allows for faster nut engagement as well as more wheel nut options in the industry (since BMW is the only ones using M14 x 1.25 so far). This allows users to get replacement nuts from more sources in case they need them quickly. Make sure you order M14 x 1.5 nuts to go with this size stud.
How much torque is too much torque?A common question we get is how often should studs last? Perhaps a better answer is the actual inspection of the stud itself. Although a stud may appear "fine", closer inspection may show otherwise.
Below is a picture of a new stud and a yielded stud with a thread pitch gauge, showing that a stud has clearly been over stretched beyond its yield point. It would be a matter of time before this yielded stud would break while being used.
Stud Service LifeWhen is the time to replace studs? Unfortunately, most decide to do it when it is too late, when they've already broken one or more studs. We have surveyed and asked many racers and drivers and it would be the consensus that approximately 10 hours of track use would be a safe interval for a stud change. Driving to the track event does not count as "interval time". If you attend the average HPDE, generally speaking, a driver will get 1.5 hours of track time. With this in mind, the studs should be changed after 7 track events. This also means NO nut torquing while in the "hot pits" as the actual temperature of the stud can increase by 30%. This is generally for M12 stud users. Our experience with M14 studs is much longer!
Fits the following vehicles:
Installation Notes: We recommend the use of Loctite 262 on the base of the threads of the stud during installation. Installation of the studs into the hub only requires 15 ft. lbs. We find the "double-nut" method to be the best way to install these.
Upgrade your M12 BMWs to M14s with our exclusive Wheel Stud Jig!