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ARP (Automotive Racing Products) makes the strongest fasteners in motorsport — head studs, main studs, rod bolts, and flexplate bolts used by every Formula 1, NHRA, NASCAR, and championship motorsport program. Aerospace-grade alloys, exact-fit machining.
When it comes to your vehicle's critical components, you cannot afford to compromise on quality. These Auto Racing Products (ARP) 5/8-18 12-point nuts are engineered for high-stress applications where standard hardware simply won't suffice. Manufactured from high-strength chromoly steel and finished with a durable black oxide coating, these nuts provide the clamping force and reliability required for professional racing and high-performance street builds.
The 12-point head design is a favorite among engine builders and chassis specialists, as it allows for easier access in tight spaces and provides a larger surface area for torque application without rounding off the corners. These nuts are ideal for suspension, engine mounts, and other high-load areas of your vehicle. Ensure your build stays together under extreme conditions with premium fasteners from GGCRACING.
| Brand | Auto Racing Products |
|---|---|
| Manufacturer part number | 300-8339 |
| GGC SKU | BQDN_300-8339 |
| UPC / GTIN | 672036021696 |
Use the manufacturer part number when you compare with other listings or ask us to confirm a match.
| Box size | 10 × 6 × 0.75 in |
|---|---|
| Shipping weight | 1.08 lb |
Vehicle fitment is not listed for this part. Send us your year, make and model at sales@ggcracing.com and we will confirm before you order.
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