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Home/Wheel Bolts FAQ
Wheel Bolts FAQ2019-12-01T09:03:56+00:00
How to confirm the thread type and length of the BONOSS bolts?2019-12-01T08:47:54+00:00

When the bolt is tighten to the wheel, the thread type and length of the bolt are very important, which is directly related to driving safety. However, the bolts of different car models are often different, sometimes the same car model have different bolts due to different years. We recommend that you contact BONOSS professional customer service before purchasing in order to ensure driving safety because we have a comprehensive database to provide you with professional and accurate services.

How to confirm the contact surface of the BONOSS bolts?2019-12-01T09:00:03+00:00

BONOSS bolts’s contact surface have 60 degree cone seat, R12 ball seat, R13 ball seat, R14 ball seat, flat seat, etc.
For the factory wheels, the contact surface of the newly purchased bolts must be the same as the factory wheel bolts.
For the aftermarket wheels, the contact surface of the newly purchased bolts must be the same as the contact surface of the aftermarket wheels.

How to confirm the tightening torque of the BONOSS bolts?2019-12-01T09:01:10+00:00

Since the BONOSS extended bolts have the same or higher level and performance than the factory bolts, which can withstand greater tightening torques.
However, we recommend using the torque recommended by the original car for locking due to the different wheels and different orginal lug thread.
In general, the tightening torque is as follows:
M12x1.25: 113NM(83.3Ft-tb)
M12x1.5: 113NM(83.3Ft-tb)
M14x1.25: 140NM(103.5Ft-tb)
M14x1.5: 140NM(103.5Ft-tb)

What is the level and mechanical performance of BONOSS bolts?2019-12-01T09:01:20+00:00

The BONOSS bolts are mainly available in 10.9 and 12.9 grades of the ISO898-1 standard.
The key performance of grade 10.9 is as follows:
The key performance of grade 12.9 is as follows:
For detailed test reports of authoritative third-party testing organizations SGS and TUV, please check here.

SGS Certification.

TUV Certification.

What is the surface color and anti-rust of BONOSS bolts?2019-12-01T09:01:31+00:00

The surface color of BONOSS bolts is mainly balck with the technology of environmental protection. The anti-rust ability is neutral salt spray tested for more than 500 hours. For detailed test reports of authoritative third-party testing organizations SGS and TUV, please check here.

SGS Certification.

TUV Certification.

How do I confirm which type of BONOSS bolts should I use for my car?2019-12-01T09:01:39+00:00

Since the wheel bolts involve multiple data, each data selection error will result in failure to use or even affect driving safety. We recommend that you contact us before purchase to obtain accurate, professional and efficient BONOSS customer service.

What is the difference between BONOSS wheel bolts and wheel studs?2019-12-01T09:01:47+00:00

In many cases, it is easy to confuse the two concepts, or there is no clear distinction. In our view, Wheel Bolts are generally used to directly fix the wheel to the hub axle, which can be directly removed by HEX17 or HEX19 sleeve + wrench in most cases. Most European car models such as Mercedes-Benz, BMW, Audi, Porsche, Volkswagen, Citroen, and Volvo commonly use this structure. While the Wheel Studs are morecommon in Japanese and American car models, such as Toyota, Honda, Nissan, Mazda, Buick, Chevrolet, etc., Wheel Studs have been fixed on the hub axle so that the disassembly and replacement is relatively complicated, and it is necessary to use Wheel Nuts to fasten the wheel after place it onto the studs.

What material is the shell of the BONOSS shell bolt made of?2019-12-01T09:01:54+00:00

The shells of the BONOSS shell type bolts made of 7075T6 aluminum alloy, which were machined by high-precision CNC and came with characteristics of light weight, strong and durable.

Can the shell of BONOSS shell bolts be replaced?2019-12-01T09:02:03+00:00

The shells of the BONOSS shell type bolts can be replaced to use, but which cannot be used with other brands of shells because of BONOSS unique structure.

Will the shell of the BONOSS shell bolt fade?2019-12-01T09:02:10+00:00

The shell of the BONOSS shell-type bolts used the “Hard Anodized Coloring” project, which are bright in color and very artistic. There maybe happen darkening and fading after a long time due to various factors such as environmental impact and corrosion of alkaline substances. Do believe that BONOSS will use more updated technologies to protect the color and extend the beautiful color time.

How to install the bolt part (including the locking bolt) and the shell part of the BONOSS shell type bolt?2019-12-01T09:02:17+00:00

a. Ordinary bolt part can be directly installed by HEX17 socket. Refer to “Locking Torque” for installation torque.
b. The locking bolt part need to installed with BONOSS special socket + HEX17 socket. The installation torque is the same as that of ordinary bolts.
c. The installation of the shell part needs attention. The shell part is mainly used for aesthetic purposes, which does not bear the role of fixing the wheel. And it also is thinness and basically unstressed during use, so it is not suitable for excessive force during installation. We recommend A torque of 5-15NM.