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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.
Maintain the integrity of your engine's fastener system with this genuine ARP M12x1.25 12-point replacement nut. Designed for high-performance applications, these nuts are forged from premium-grade alloy steel to provide exceptional tensile strength and durability. The 12-point design allows for easier access in tight engine bays and ensures a secure fit that resists loosening under extreme vibration and heat.
Using improper or worn-out nuts can lead to uneven clamping force, resulting in gasket failure or structural damage to your engine. These ARP nuts are engineered to work seamlessly with ARP studs, providing a consistent torque profile that ensures your engine components are held together with maximum precision. Whether you are performing a routine rebuild or a full-scale engine upgrade, replacing your fasteners with authentic ARP components is a critical step in ensuring long-term reliability. Don't compromise on the safety of your engine; rely on the proven strength of ARP hardware. Explore our full catalog of performance fasteners at GGCRACING.
| Brand | ARP |
|---|---|
| Manufacturer part number | AUN12-2 |
| GGC SKU | ARPAUN12-2 |
Use the manufacturer part number when you compare with other listings or ask us to confirm a match.
| Box size | 0.6 × 0.6 × 0.03 in |
|---|---|
| Shipping weight | 0.04 lb |
Universal fit — check measurements. Compare the dimensions and specifications on this page with your application before you order.
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