Project Kics CB-28 Silver M12x1.5 Compression Bolt Set for Racing Nut | WCB281S
Tax Season '23 Cat
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Project Kics CB-28 Silver M12x1.5 Compression Bolt Set for Racing Nut

$166.00 Sale:$157.70


Model #WCB281S

In Stock

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The "compression bolt" product for exclusive use of the through nut (long type) is a product in which a steel ball and a spring are built in an aluminum bolt, and is a product to be attached to the excess screw part of the through nut that was actually attached (see the figure below). You can create an appearance that looks like you are wearing a super long hub bolt!

Moreover, the tension of the spring improves the loosening prevention effect of the attached nut.

Product Details:

  • Material: Aluminum
  • Length: 28mm
  • Size: M12x1.5
  • Color: Silver
  • Quantity: 20 Pieces
  • This product "compression bolt" is exclusively for through nuts (long type).
  • Be sure to install the nut with the nut attached to the vehicle (retrofitting).
  • For installation, use the included 6HEX, L-type wrench.
  • The maximum tightening torque of this product "compression bolt" is 4N m (0.4kgf m) .
    If more torque is applied, the tip of the bolt may be damaged and the elasticity of the spring may be lost.
  • The nut screwing allowance "above figure" varies depending on the amount of hub bolt protrusion of each car manufacturer's model.
    It also changes when spacers are installed or long hub bolts are used.
    When installing, check the total length of the nut and the screwing allowance, and calculate the amount of protrusion of the "comp bolt".
  • This product "compression bolt" requires an extra screw length of "8 mm or more" "above figure".
  • Never use the product if it protrudes from the vehicle fender after installation.
  • This product has a washer effect due to the elasticity of the coil spring, but it cannot completely prevent the screws from loosening.
    Regular retightening of the wheel nut body and this product is required.
  • To remove the wheel, first remove the "comp bolt" and then the nut.

Other Part Numbers:

Proposition 65

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What is Project Kics?

Project Kics is a member of the larger KYO-EI industrial corporation, which is one of the most trusted names in Japan when it comes to automotive accessories. For more than 50 years, KYO-EI has developed a number of unique parts that are heavily used in both street and racing applications and cover virtually every vehicle on the market. Designed and manufactured in Japan, KYO-EI uses only the highest quality materials in order to guarantee product reliability and longevity. 

Project Kics specializing in the manufacturing of high-quality metal-based products. It mainly focuses on wheel accessories like its famous wheel spacers, lug nuts, and magnetic locking wheel nuts. The company boasts a range of memberships and certifications, including ISO, NAPAC, and JAB, so you can rest assured that all Kics products are fabricated to only the highest standards. 

What Does Project Kics Offer?

Project Kics offers a lineup of lug bolts, lug nuts, wheel spacers, and other accessories in several types to meet the various requirements of drivers. For example, Kics offers three types of shell lug nuts which all feature a special two-piece design that includes a Chromoly SCM435 alloy nut and lock with a steel key. You can also get Kics’ heptagon lug nuts, which are also available in several types like long/closed, short/open, and caliber 24. To make things even easier, Project Kics also offers a wide range of complete lug kits.

What’s more, Project Kics boasts a lineup of wheel spacers that includes both universal and vehicle-specific application units like BMW conversion spacers. Wide thread spacers are also available in 11mm, 15mm, 20mm, 25mm, and 30mm thickness. You can even choose from red, blue, and black wide thread spacer duralumin covers. Additional accessories include magnetic drain bolts, hub centric rings, valve caps, and more! Be on the lookout because Project Kics is always expanding its product lineup to appease to its customer base.

Find Project Kics at Vivid Racing

Vivid Racing carries a generous inventory of Project Kics products ranging from wheel spacers, wheel bolts, and valve stems to lug nuts, hub centric rings, drain plugs, and more! If you are having trouble locating a specific part or have questions about Kics, please do not hesitate to contact Vivid Racing’s expert sales team at (480) 966-3040. We are here to make the buying experience a pleasant and stress-free one.

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