12.9 Grade Eccentric Camber Bolts for MX-5 NA & NB
Suits: Mazda MX-5 NA, NB (long and short bolts)
Set your alignment and keep it. High tensile camber bolts for the NA and NB that stop worn bolts letting it wander.
- 12.9 grade high-carbon steel, E-coated
- 3-key Woodruff plate for more contact area
- 304 stainless plates, grade 10.9 Conelock nut
- Full car set: 6 long and 2 short bolts
Why upgrade
Over time the factory camber bolts develop free play and the alignment drifts. That means uneven tyre wear and steering that doesn’t track as it should.
Our camber bolts are made from 12.9 grade high-carbon steel with an E-coat finish. A 3-key Woodruff plate increases the contact area between the bolt and plate to spread the load, so your settings stay put, even with spirited driving. The 304 stainless steel plates resist corrosion.
How many do I need?
A full car set is 6 long bolts and 2 short bolts. Each bolt is sold on its own, so choose the size and quantity you need. The diagram in the product photos shows where each one goes.
Specifications
| Suits | Mazda MX-5 NA, NB |
|---|---|
| Sizes | Long bolt (MXCB107.5), short bolt (MXCB98.5) |
| Bolt | Grade 12.9 high-carbon steel, E-coated |
| Nut | Conelock flange nut, grade 10.9, zinc coated |
| Plates | Hex plate and 3-key Woodruff plate, 304 stainless steel |
| Sold as | Single bolt assembly |
| Full car set | 6 long, 2 short |
| Country of origin | Australia |
Fitting
The hex plate slides straight onto the bolt. The Woodruff plate is a deliberately tight fit, so tap it on with a plastic mallet. Once 2-3 threads are showing, fit the Conelock nut, which keeps pushing the Woodruff plate home as you tighten it.
Get a wheel alignment once they’re in. Read more in what are camber bolts and why should I care.
We recommend installation by a licensed mechanic.
Pairs with
- Steering rack spacers for MX-5 NA: reduce bump steer on a lowered NA.
What's Included
-
1× Camber bolt (grade 12.9, E-coated)
-
1× Conelock flange nut (grade 10.9, zinc coated)
-
1× Hex plate (304 stainless steel)
-
1× Woodruff plate (304 stainless steel)
Customer Installs
Installs of this part — and similar parts in this category.
Will it fit your car?
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Our Story
We weren't always HFM.Parts; we were Holford Motors. Our brand's identity was forged not in an office, but on the local circuits in the high-stress world of competitive drifting. Our ultimate testbed was our Nissan S14 Drift car, driven by champion Luke Fink. Pushing that car to its limits exposed a crucial truth: achieving genuine, repeatable performance meant relying on components that simply weren't available affordably on the market.
The HFM.Parts brand was born
We made the commitment to design and manufacture the uncompromising, high-quality performance parts that we, as competitive racers, demanded ourselves. Every component you see is a solution conceived, tested, and proven by us. When you choose HFM.Parts, you are investing in components engineered by racers, for racers, ensuring your vehicle delivers its maximum performance potential.
Modifying vehicles is a specialist task and requires the knowledge and experience of competent
individuals to
be conducted safely.
We recommend this product be installed by a competent person. Instructions are given with every
order
where
available, however, If you would like a copy prior to ordering, you're welcome to contact us
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