Generic Region Offroad 10.9 Steering Knuckle Hub Bolts — 6-Piece Yellow Zinc, Hardened Grade 10.9

These Region Offroad 10.9-class hardened yellow zinc hex flange bolts replace weak factory tapered hub bolts to securely fasten front wheel hubs and bearings to steering knuckles.

If you're tired of corroded, rounded-off or undersized OEM hub bolts, these Region Offroad 10.9 flange bolts are designed as a direct-fit, stronger replacement. Made to the metric equivalent of Grade 8 (class 10.9) and finished in yellow zinc for superior rust resistance, the set includes six bolts—enough to service both sides of the vehicle. They fit a wide range of classic Jeep platforms and replace Mopar part 34201535 without trimming or modification.

Will these bolts fit my older Jeep?

Yes — these bolts are manufactured to match OEM length and fitment for the listed models. They are intended to replace the tapered factory bolts and mount the front hub/bearing assembly to the steering knuckle without alteration.

• Fits Wrangler YJ, TJ, LJ (1987–2006)
• Fits Cherokee XJ (1984–2001) and Comanche MJ (1986–1992)
• Fits Grand Cherokee ZJ (1993–1998), Wagoneer (1984–1990), Grand Wagoneer (1993)
• Direct replacement for Mopar 34201535; sold as a 6-bolt kit

How much stronger and more corrosion-resistant are these than OEM bolts?

These bolts use class 10.9 heat-treated steel — the metric equivalent of Grade 8 — giving significantly higher tensile strength than typical factory bolts. The yellow zinc plating adds a thicker corrosion barrier compared with black oxide, reducing rust and making future removal easier.

• Hardened class 10.9 alloy steel for high tensile strength
• Yellow zinc plating for improved corrosion protection
• Larger hex flange head to reduce rounding during removal
• Sold in a 6-bolt pack for full front axle service

Can I modify the bolts to fit a custom setup?

Do not cut or shorten these bolts; they are supplied at the correct length for the intended applications. Altering bolt length can compromise clamp load, engagement, and safety — use the bolts as supplied or consult a qualified mechanic for custom applications.

• Built to exact OEM length for listed vehicles
• Do not trim, grind, or change thread engagement
• If a different length is required, choose a proper replacement rather than modifying these bolts

Why choose hex flange bolts over original tapered bolts?

Hex flange bolts provide a broader bearing surface and a larger head that resists rounding, making removal and reinstallation easier during maintenance. The flat flange also distributes load more uniformly than a tapered seat designed to reduce manufacturing cost.

• Flange head prevents the bolt from sinking into softer mating surfaces
• Larger hex size reduces risk of tool slip and rounded corners
• More consistent clamping surface than tapered designs

Who this product is for: These Region Offroad 10.9 hub bolts are ideal for Jeep owners, home mechanics, and small shops restoring or maintaining late-1980s through 1990s Jeep models that require reliable, stronger fasteners. If you need a direct-fit replacement for worn, corroded, or factory-tapered hub bolts and want a higher-strength, corrosion-resistant option that’s sold by a small US business, this 6-pack meets that need without modification.