Bolt length varies from brand to brand, for example, BMW M4 G82/G83 is 27mm, so if you need to replace 2022 BMW M4 G82/G83 aftermarket wheel bolts, then you need to replace the wheel bolts with the same length. M14x1.25 is the thread data for BMW M4 G82/G83, the letter ‘M’ indicates that this bolt uses a metric thread, “14” refers to the nominal diameter of the bolt shaft in millimeters, “1.25” is the thread pitch of the bolt, which is the distance between threads, in millimeters。
BONOSS offers stock wheel bolt length and extended wheel bolts with various thicknesses of 2022 BMW M4 G82/G83 wheel spacers. The extended wheel bolt length will be calculated based on the thickness of the wheel spacers, for example, if the stock wheel bolt length is 27mm, plus 10mm BMW M4 G82/G83, it will need 37mm extended wheel bolt length, bolt length shorter than 37mm will cause the wheel bolt can’t lock the wheels, and the number of engagement turns is not enough to cause the wheel to fall off.
What Bolt Length BONOSS Has?
BONOSS offers various lengths and threads of wheel bolts, among which the shell type wheel & lock bolt kit for BMW M4 G82/G83 offers 4 bolt length options, including 28mm stock wheel bolts, 37mm, 42mm, and 47mm. 37mm bolt length corresponds to 10mm wheel spacers, 42mm bolt length corresponds to 15mm wheel spacers, and 47mm corresponds to 20mm wheel spacers. Due to the bolt-on construction of wheel spacers over 20mm, longer bolt lengths are available by contacting our customer service team for customization services.
Bolt length needs to be calculated accurately, and wheel bolts also need to be installed with the correct number of safe turns and the correct torque. The number of safety turns refers to the number of rotations of the bolt, and less than the safe number of turns may result in insufficient clamping force of the bolt. The correct torque is also essential, as different thread data require different torque values. Below are the recommended safety turns and torques from BONOSS.
The minimum number of turns for wheel bolts/nuts:
M12 x 1.25 = 8.0 turns = 113N.m(83.3Ft-tb) = approx. 10 mm of load-bearing shaft length
M12 x 1.50 = 6.5 turns = 113N.m(83.3Ft-tb) = approx. 10 mm of load-bearing shaft length
M12 x 1.75 = 6.5 turns = 113N.m(83.3Ft-tb) = approx. 12 mm of load-bearing shaft length
M14 x 1.25 = 9.0 turns = 140N.m(103.5Ft-tb) = approx. 12mm of load-bearing shaft length
M14 x 1.50 = 7.5 turns = 140N.m(103.5Ft-tb) = approx. 12 mm of load-bearing shaft length
1/2″ UNF = 8.0 turns = 140N.m(103.5Ft-tb) = approx. 11 mm of load bearing shaft length
Noted: Forged aluminum alloy lug nuts are recommended for a more tightening number of turns to ensure load safety.
Choosing the correct wheel bolt length and thread size is the first step, and the number of safety turns and torque value is the second step. You can choose the right wheel bolts on the official website of BONOSS.