Project Description

Audi S4

Data: PCD 5×112 CB 66.5
Surface: BOLT
Thread Type: M14x1.5
Length: 27mm
Seat Type: Ball  (Modified Conical Seat)
(Pay attention: the reason why the customer chooses conical seat bolts is according to the wheels, the bolts seat type should match the wheel seat type.)
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Detail Listing:
BONOSS Forged Grade 12.9 Shell Type Lock Bolt Kit (Black)
RAYS G25 Forged Wheels
ETERAX Brakes Discs
ENDLESS Brakes
(Thanks for the customer providing the images)

Custom aftermarket wheels can not only add a personalized style but also enhance the handling performance of your vehicle. Therefore, when changing wheels, you can choose some non-original wheels according to your needs. Although many aftermarket alloy rims are designed to use your car’s stock lug nuts or wheel bolts, there are others that require new hardware. It can be something as central as the differences in the rim’s lug seat type, or something as simple as shorter heads of the lug bolts to fit the wheel’s center caps. Wheel bolts are relatively small components under extremely large forces, and they are absolutely critical to locking the wheel on your vehicle so that the seat type and other fitment are quite important.

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How to confirm the seat type of bolts for your new wheels?

There are conical seats (also called “cone” or “tapered” seats), ball seats (also called “radius” or “rounded” seats), flat seats (also called “mag” seats), etc. A 60° Conical Seat is the most common and is found on most aftermarket wheels. But there may be differences, so please take a check to your new rims. You can get information from the wheel manufacturers or just touch the lug seat around directly with your fingers. Typically, for the factory wheels, the seat type of the lug bolts will be the same as the factory wheel bolts. For the aftermarket wheels, the seat type of the lug bolts must be the same as the type of the aftermarket wheels. It is essential that the wheel bolts seat and the wheel lug seat match. If the wheel bolts seat type does not fit the wheel lug seat type, it is possible that the wheel bolts would be bent or damage the wheel. The mismatch between bolts and wheels could potentially cause the bolt to loosen and the wheel to become insecure to the vehicle.

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Audi S4 install BONOSS Forged Grade 12.9 Shell Type Lock Bolt Kit (3).jpg

Make sure the contact surface is fit for the wheels

BONOSS bolts’ contact surface has the 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.

Additional Information:

  • BONOSS Forged 12.9 Grade Shell Type Lock Bolt Kit colors can be customized flexibly. Thus, if you would like different colors of shell type lock bolt kits, feel free to contact us. The data of this Audi S4 are front 27mm (1’’) rear 27mm (1’’), PCD 5*112, CB 5, (RAYS G25Wheels) conical seat bolts M14*1.5.
  • The extended bolts are shell structure design, which effectively protects the bolts from rusting. This Audi S4 uses (RAYS G25Wheels) conical seat bolts. If you would like a set of shell type lock bolt kits, please ensure the seat type of the bolts is suitable for threading tightly. And, if you don’t know the proper length, you are welcomed to contact our tech staff freely.
  • Each BONOSS product is printed with the logo of “BONOSS”. This offers an easy method to distinguish other fake and inferior products. At the same time, it also provides a way to find our after-sales service. Our products are 10 Years Limited Warranty (new products with 12 months warranty), which is an excellent and cost-effective choice for your car upgrades.

Interested in purchasing? Click HERE to know more!