ARP Nut Kits

2010–2025 Universal / Automotive Stainless Steel Nut Kit

Part #: 400-8657

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 a custom engine build, upgrading suspension components, or securing critical parts, these nuts ensure a secure fit and long-lasting performance.

Designed for use in a variety of automotive and racing environments, ARP Nut Kits help support increased safety and peace of mind during spirited driving, off-road adventures, or high-stress racing scenarios. Their polished finish not only enhances the aesthetic appeal of your engine bay or chassis but also resists corrosion, maintaining their appearance over time.

Key Features

ARP Nut Kits are built with a focus on strength, precision, and ease of use. Here are some of the key features that set these nuts apart:

• Material Excellence: Made from aerospace-quality stainless steel, these nuts offer superior tensile strength and corrosion resistance, ensuring they withstand the rigors of high-performance use.
• High Tensile Strength: Rated at 180,000 psi tensile strength, these nuts provide reliable clamping force even under extreme loads, helping to prevent loosening or failure during demanding driving conditions.
• 12-Point Style Heads: The 12-point design allows for easier installation and removal in tight spaces, providing better access compared to standard hex nuts.
• Polished Finish: The polished surface not only looks great but also offers additional corrosion resistance, maintaining a clean appearance over time.
• Compatibility: Designed to fit 1/2"-13 threaded studs and bolts, these nuts are versatile and suitable for a wide range of applications.
• Washers Included: Please note that washers are not included, allowing you to select the appropriate washers for your specific application.
• Reliable Performance: With a nut tensile strength of 140,000 psi, these fasteners are engineered to handle high-stress environments without failure.
• Made in the USA: ARP is renowned for manufacturing high-quality fasteners in the United States, ensuring strict quality control and consistency.

Construction & Design

The ARP Nut Kits feature a robust construction utilizing aerospace-grade stainless steel, which combines strength with corrosion resistance. The 12-point head design allows for easier wrench engagement in confined spaces, reducing installation time and effort. The polished finish not only enhances visual appeal but also provides an extra layer of protection against rust and corrosion, making these nuts suitable for both street and racing environments.

Designed with precision threading and tight manufacturing tolerances, these nuts ensure a secure fit on 1/2"-13 threaded components. Their high tensile strength rating guarantees they can withstand the demanding forces encountered in high-performance applications, providing peace of mind during intense driving sessions or off-road adventures.

Installation & Fitment

The ARP Nut Kits are designed for straightforward, bolt-on installation. They fit standard 1/2"-13 threaded studs and bolts, making them compatible with a wide range of automotive components. No special tools or modifications are required for installation, and the nuts can be easily tightened or removed with standard wrenches. Their 12-point head design facilitates easier access in tight spaces, streamlining the assembly process.

What's Included

• Polished stainless steel nuts (quantity as specified by the kit)

Ideal For

• High-performance engine builds
• Suspension and chassis assembly
• Racing applications requiring reliable fasteners
• Off-road vehicles subjected to extreme conditions
• Enthusiasts seeking durable, aerospace-quality hardware