ARP Nut Kits

Applicable for 5/8" -18" Thread Size

Part #: 300-8339

Overview

The ARP Nut Kits are precision-engineered fasteners designed for high-performance automotive applications. Crafted from aerospace-quality materials, these nuts provide exceptional strength and durability, making them ideal for enthusiasts and professionals who demand reliability under extreme conditions. Whether you're assembling engine components, securing suspension parts, or working on custom builds, these nuts ensure a secure fit and long-lasting performance.

Designed for those who seek top-tier quality and consistent performance, ARP Nut Kits help support increased safety and integrity in your vehicle's assembly. Their robust construction and precise threading make installation straightforward, providing peace of mind during spirited driving or demanding off-road adventures. These nuts are perfect for race cars, street performance builds, or any project where strength and reliability are paramount.

Key Features

ARP Nut Kits are built with the highest standards of quality and engineering, offering several key features that set them apart from standard hardware:

• Manufactured from aerospace-grade materials, including chromoly or stainless steel, for maximum strength and corrosion resistance.
• Rated at 180,000 psi tensile strength, ensuring they can withstand extreme loads and stresses encountered in high-performance applications.
• Designed with a 12-point head style, providing increased wrench engagement and easier installation in tight spaces.
• Black oxide finish offers corrosion resistance and a sleek, professional appearance.
• Precise 5/8" -18 thread size ensures compatibility with a wide range of automotive components requiring high-strength fasteners.
• Wrench diameter of 13/16" allows for easy installation and removal with standard tools.
• Includes washers for added security and load distribution (if applicable, based on specific kit).
• Made in the USA to meet strict quality standards and ensure consistent manufacturing processes.

Construction & Design

The ARP Nut Kits feature a meticulously engineered design that emphasizes strength, durability, and ease of use. The nuts are machined from aerospace-quality steel, which provides superior tensile strength and resistance to fatigue. The 12-point head design allows for better wrench grip, especially in confined spaces, reducing the risk of stripping or slipping during installation.

The black oxide finish not only enhances corrosion resistance but also provides a professional, low-reflective appearance suitable for high-performance builds. These nuts are manufactured with precise threading to ensure a perfect fit with ARP bolts and other compatible fasteners, promoting optimal clamping force and safety. The absence of nylon inserts or self-locking features means these nuts rely solely on their high strength and proper torque application for secure fastening, making them suitable for critical applications where maximum holding power is required.

Performance & Reliability

Designed for demanding automotive environments, ARP Nut Kits deliver exceptional performance under high stress and vibration. Their aerospace-grade construction ensures they maintain integrity over time, even in extreme conditions. These nuts are ideal for use in engine assemblies, suspension components, and other critical areas where fastener failure is not an option. Their high tensile strength and precision manufacturing help support the safety and reliability of your vehicle, whether on the street or the race track.

Installation & Fitment

ARP Nut Kits are designed for straightforward, bolt-on installation. They utilize standard 5/8" -18 threads compatible with a wide range of automotive components. No special tools or modifications are required—simply thread onto your ARP bolts or compatible fasteners and tighten to the specified torque for optimal clamping force. These nuts are suitable for use in various high-performance applications and are engineered to provide a secure, vibration-resistant fit.

• Easy to install with standard wrenches.
• No cutting, drilling, or special tuning needed.
• Designed to meet or exceed OEM standards for high-stress environments.

What's Included

• Complete set of ARP Nut Kits with the specified thread size and style.
• High-strength steel nuts with black oxide finish.
• Optional washers for load distribution (if included in your specific kit).
• Installation instructions and torque specifications (if provided).

Ideal For

• High-performance engine builds and modifications.
• Suspension and chassis assembly requiring durable fasteners.
• Race cars and off-road vehicles subjected to extreme conditions.
• Enthusiasts seeking reliable, aerospace-grade hardware for daily driving or competition.