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SKU: 300-8308
ARP M12 x 1.25 12pt Nut Kit (Small Collar) for Honda S2000 Nissan RB26DETT Toyota 1UZ-FE Subaru STI
ARP M12 x 1.25 12-point small collar nut kit includes 10 premium nuts for head studs and connecting rods in high-performance engines. Designed for Honda S2000 F20C/F22C Nissan Skyline GT-R RB26DETT Toyota Lexus 1UZ-FE and Subaru EJ257 applications. Provides consistent clamp load and resistance to fatigue for reliable performance on street track or drag strip.
Key Features
- Genuine ARP Construction: Forged from high-strength proprietary steel alloy heat treated for maximum tensile strength and fatigue resistance
- 12-Point Head Design: Enables precise torquing with 14mm thin-wall sockets for accurate preload in tight spaces
- Small Collar Profile: .438 inch outer diameter matches ARP studs perfectly to prevent slippage and ensure even load distribution
- Black Oxide Finish: Protects against corrosion and galling for long-term durability in harsh engine environments
- Complete 10-Nut Kit: Application-matched set simplifies assembly with all necessary hardware included
Product Notes
- Pair with ARP head or rod stud kits for M12 x 1.25 threads
- Inspect studs for wear before installing new nuts
- Lightweight at 0.2 lbs ships in compact 4 x 3 x 1 inch box
Installation Notes
- Professional installation recommended.
- Clean all threads thoroughly and apply ARP Ultra-Torque lubricant
- Torque to ARP specified values in correct sequence recheck after heat cycles
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2000-2009 | Honda | S2000 | F20C F22C1 |
| 1989-2002 | Nissan | Skyline GT-R | RB26DETT |
| 1990-2000 | Toyota Lexus | LS400 GS400 SC400 | 1UZ-FE |
| 2004-2021 | Subaru | Impreza WRX STI | EJ257 |
Why Choose ARP?
- Decades of leadership in high-performance fasteners
- Test proven in NHRA NASCAR and endurance racing
- Precision manufactured to exceed OEM strength standards
Frequently Asked Questions
-
Q: Will this kit fit my ARP head studs on RB26 or S2000?
A: Yes matches ARP stud kits like 210-8702 for RB26DETT and 208-4304 for F20C with M12 x 1.25 threads and small collar -
Q: What material and finish do these nuts have?
A: Made from ARP exclusive 8740 chrome moly steel heat treated to 200000 psi black oxide coated for rust protection -
Q: What torque specs and lube should I use?
A: Follow ARP instructions use Ultra-Torque lube torque to 65-75 ft-lbs depending on application re-torque after 100 miles
Shipping & Handling
- Method: UPS Ground USPS Priority
- Availability: In stock - ships same or next business day
- Packaging: Secure ARP box 4 x 3 x 1 inches
- Weight: 0.2 lbs
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