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SKU: 300-8301
ARP 5/16 Inch-24 12pt Nut Kit 300-8301
ARP 300-8301 nut kit includes 20 precision 12-point nuts in 5/16-24 thread size for high-performance engine and exhaust applications. These nuts secure rod ends, headers, manifolds, and other components where wrench clearance is limited. They maintain clamp load through heat cycles and vibration for dependable performance in street and race setups.
Key Features
- 12-Point Head: Provides multiple engagement points for faster installation and removal in confined spaces like cylinder heads or exhaust manifolds
- 8740 Chromoly Steel: Heat treated to 200,000 psi tensile strength to handle extreme torque and stress without stripping or failure
- Black Oxide Finish: Shields against rust and corrosion in harsh engine bay environments for extended service life
- Exact 5/16-24 UNF Threads: Matches ARP bolts and studs perfectly for consistent preload and fatigue resistance
- 20-Nut Kit: Supplies enough hardware for full assemblies such as header bolts or rocker arms on V8 engines
Product Notes
- Inspect threads for damage before use to ensure maximum holding power
- Apply ARP Ultra-Torque lubricant to achieve specified torque values accurately
- Kit ships in protective packaging to prevent damage during transit
Installation Notes
- Professional installation recommended.
- Torque to ARP specifications using calibrated tools and sequence diagram
- Compatible with all 5/16-24 ARP bolts, studs, and rod ends
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| Universal | Various | Engine Builds | Headers/Exhaust/Rod Ends |
| Universal | Chevrolet | Small Block | Header Kits |
| Universal | Ford | Windsor/Cleveland | Manifold Bolts |
| Universal | GM | LS Series | Rocker Hardware |
Why Choose ARP?
- Decades of motorsport use in NHRA, NASCAR, and endurance racing
- Every nut forged and machined to exact tolerances for repeatable results
- Engineered clamp load far beyond OEM fasteners for high-horsepower reliability
Frequently Asked Questions
-
Q: What vehicles or applications does this nut kit fit?
A: Designed for universal use on 5/16-24 threaded fasteners in performance engines, exhaust headers, intake manifolds, rocker arms, and suspension rod ends across Chevy, Ford, GM, and imports -
Q: What material and strength rating?
A: Made from 8740 chromoly steel construction, heat treated to 200,000 psi minimum tensile strength with black oxide finish for durability -
Q: What is the warranty and torque procedure?
A: Backed by ARP limited lifetime warranty against manufacturing defects. follow ARP torque specs with Ultra-Torque lube and recheck after 500 miles
Shipping & Handling
- Method: UPS Ground or USPS Priority
- Availability: In stock - ships same or next business day
- Packaging: Compact protective kit box, 4 x 4 x 1 inches
- Weight: 0.35 lbs
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