ECS Tuning is proud to offer extended wheel bolts individually or with our spacers that are matched to take the guesswork out of correct fitment. Our bolts are designed to meet ISO 898 class 10.9 mechanical and physical properties. This is a very strict standard that specifies material properties, hardening and tempering requirements, and proof load strength requirements. Furthermore, our fasteners have been lab tested to verify that they meet class 10.9 requirements. Bolt specifications: Diameter - 12mm Thread Pitch - 1.5mm Length - 30mm *When installing wheel spacers, add the size of the spacer to the length of the OE wheel bolt for proper fitment (ex. 27mm Length OE Wheel Bolt + 15mm Wheel Spacer = Require a 42mm Length Bolt)
