ARP Nut Kits

3/8"-16 Stainless Steel Nut Kit for Automotive Applications

Part #: 400-8654

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, durability, and reliability under demanding conditions. Whether you're building a race car, restoring a classic, or upgrading your vehicle for spirited driving, these nuts ensure a secure and lasting fit.

Ideal for enthusiasts and professional mechanics alike, ARP Nut Kits deliver peace of mind by offering components that withstand extreme stresses and temperatures. Their polished finish not only enhances the appearance of your engine bay or chassis but also resists corrosion, ensuring long-term performance and aesthetic appeal.

Key Features

The ARP Nut Kits stand out due to their superior construction and thoughtful design features:

• Manufactured from aerospace-quality stainless steel, providing a tensile strength rated at 180,000 psi, ensuring they can handle high loads and stresses without failure.
• Designed with a 3/8"-16 thread size, making them compatible with a wide range of fasteners used in automotive assemblies, including cylinder heads, connecting rods, and suspension components.
• Hex style heads facilitate easy installation and removal using standard wrenches or sockets, streamlining your assembly or maintenance process.
• Polished finish not only adds a sleek, professional look but also offers corrosion resistance, making these nuts suitable for both street and racing environments.
• Rated at a tensile strength of 140,000 psi, these nuts are engineered to support high-stress applications, providing confidence in their holding power.
• Designed without nylon inserts or self-locking features, these nuts rely on their high-quality material and precise threading for secure fastening, ideal for applications where lock washers or thread-locking compounds are used separately.
• Washers are not included, allowing you to select the appropriate hardware for your specific application and torque requirements.

Construction & Design

The ARP Nut Kits are meticulously manufactured using aerospace-grade stainless steel, ensuring maximum strength and corrosion resistance. The 12-point head design allows for increased torque application and better grip during installation, especially in tight spaces. The polished finish not only enhances visual appeal but also provides an additional layer of protection against rust and corrosion, making these nuts suitable for both on-road and off-road use.

The precise threading and high tensile strength make these nuts ideal for securing critical components such as cylinder heads, intake manifolds, and suspension parts. Their robust construction ensures they maintain their integrity under vibration, heat, and mechanical stress, contributing to the overall safety and reliability of your build.

Performance & Benefits

While these nuts are not rated for racing or extreme off-road use specifically, their aerospace-quality construction ensures they perform reliably in high-stress environments. They help support the integrity of your assembly by providing a secure, vibration-resistant fastening solution. Their corrosion-resistant finish maintains their appearance and functionality over time, even in harsh conditions.

Installation & Fitment

The ARP Nut Kits are designed for straightforward, bolt-on installation. Their standard 3/8"-16 thread size fits a wide range of automotive fasteners, making them versatile for various applications. No special tools beyond a standard wrench or socket are required for installation or removal. These nuts do not include washers, so ensure you select appropriate hardware to achieve the desired torque and locking characteristics.

Always follow manufacturer torque specifications to ensure proper fastening and safety. These nuts are suitable for use in conjunction with thread-locking compounds or lock washers if additional security is desired.

What's Included

• High-strength stainless steel nut with 12-point head
• Polished finish for corrosion resistance and aesthetic appeal

Ideal For

• High-performance engine builds
• Restoration projects requiring durable fasteners
• Street and track vehicles subjected to high stresses
• Enthusiasts seeking reliable, aerospace-quality hardware

Emissions Note

This product is designed for use in off-road, racing, or non-emissions-critical applications. It is not certified for use on public roads where emissions compliance is required. Always verify local regulations before installation.