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SKU: 400-8310
ARP M10 x 1.25 Stainless Steel 12-Point Nut Kit 400-8310
ARP M10 x 1.25 stainless steel 12-point nut kit includes 10 precision nuts for ARP studs in performance engines. Fits exhaust manifolds headers turbo flanges rocker arms and valve covers requiring secure fastening. Delivers consistent clamp load and resists vibration loosening for reliable operation in street strip and track builds.
Key Features
- Stainless Steel Construction: Resists corrosion from heat exhaust gases and moisture for extended service life
- 12-Point Design: Provides superior grip and higher torque capacity without rounding or stripping
- Precise M10 x 1.25 Threads: Matches ARP studs perfectly to ensure even load distribution and prevent thread damage
- 8mm Socket Compatible: Allows access in tight spaces with standard thin-wall sockets
- Kit of 10 Nuts: Complete set for most manifold or flange applications with extras for maintenance
Product Notes
- Verify stud thread pitch matches M10 x 1.25 before installation
- Apply ARP Ultra-Torque lubricant to achieve rated clamp load
- Small lightweight kit ships fast with no hazmat restrictions
Installation Notes
- Professional installation recommended.
- Clean studs and holes thoroughly remove all debris and old sealant
- Use ARP torque specs follow sequence recheck after heat cycles
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| Universal | All | Performance Engines | M10 x 1.25 Stud Applications |
| 1986-2024 | Subaru | WRX/STI/EJ Series | Exhaust Manifold/Headers |
| 1990-2024 | Honda/Acura | K-Series/B-Series | Valve Covers/Rockers |
| 1993-2024 | Toyota | Supra 2JZ/1JZ | Turbo Flanges/Headers |
| 2003-2024 | Nissan | 350Z/G35/SR20 | Exhaust Manifold |
Why Choose ARP?
- Decades of use in NHRA NASCAR and pro racing teams
- Heat-treated materials withstand 200000 psi tensile strength
- CNC-machined for exact fit and repeatable performance
Frequently Asked Questions
-
Q: What vehicles or applications use these nuts?
A: Perfect for M10 x 1.25 studs on exhaust manifolds headers turbo downpipes valve covers and rocker arms in Subaru WRX Honda K-Series Toyota 2JZ Nissan RB/SR and custom performance builds -
Q: What material and finish do the nuts have?
A: Forged stainless steel with polished threads for maximum corrosion resistance durability and reuse in high-heat environments -
Q: What is the warranty and torque recommendation?
A: ARP guarantees against manufacturing defects use ARP torque values from 25-45 ft-lbs depending on stud size with Ultra-Torque lube for best results
Shipping & Handling
- Method: UPS Ground or USPS Priority
- Availability: In stock - ships same or next business day
- Packaging: Compact protective box 4 x 3 x 1 inches
- Weight: 0.2 lbs
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