This new wheel stud was made exclusively for BimmerWorld by one of America's leading manufacturers of race fasteners to their exacting specifications. Wheel studs are not a one time purchase and do fatigue with torque cycles and use, however they noticed shorter lifespans than expected in their race program with other studs. Further analysis showed stress risers created by screwing studs into the steel hub flange. They addressed this issue in several ways:
 
Large shoulder provides extra strength and is properly sized for BMW brake rotor hats
Undercut relief to remove thread run-out section of stud that the steel hub would otherwise cut into
All corners radiused to eliminate stress risers
 
M12x1.5 for BMW and other fitments. Heat treated 190,000psi Chromoly-steel, shot-peened, and double magnaflux inspected. This is a true professional quality stud. bullet nose feature allows easy starting for lug nuts - in hot pit situations they can be air-gunned on.
 
Available in either 82mm or 92mm total length includes bullet nose and threads into hub using a "Dri-Loc" locking adhesive for an extremely secure fit.
 
Fits all 3 Series and other M12x1.5 lug BMWs (excludes X5/X6, late 7 Series and some other new large models).
 
Hub thread length - 14mm
Nut thread length (to hub face) - 50mm
Hub face to stud nose - 68mm
 
Product Note: These wheel studs are intended for track/race applications where frequent wheel changes occur. These studs do not have a cosmetic finish applied. If used on street applications, especially in the winter, light surface oxidation/discoloration may occur.