ARP Hex Bolt Kits

2010–2025 Universal Fitment for Automotive, Marine, and Trailer Applications

Part #: 660-1001

Overview

The ARP Hex Bolt Kits are high-performance fasteners designed for automotive enthusiasts, builders, and professionals who demand the best in strength, durability, and reliability. Crafted from premium-quality chromoly steel, these bolts are engineered to withstand extreme conditions and provide a secure, long-lasting hold on a wide range of applications. Whether you're assembling a race car, restoring a classic, or working on a trailer or boat, these bolts offer a superior alternative to standard hardware.

Designed with precision and attention to detail, the ARP Hex Bolt Kits ensure that your project benefits from enhanced safety margins and consistent performance. Their black oxide finish not only provides corrosion resistance but also gives a sleek, professional appearance. These fasteners are ideal for those who want to upgrade their hardware to meet or exceed OEM standards, supporting increased safety and peace of mind during demanding driving or operating conditions.

Key Features

ARP Hex Bolt Kits are built with the serious builder in mind, offering a combination of strength, quality, and versatility. Here are some of the key features that make these bolts a top choice:

• Premium Material: Made from heat-treated 8740 chromoly steel, these bolts deliver exceptional tensile strength of approximately 180,000 psi, providing a significant safety margin over standard Grade 8 hardware.
• Corrosion Resistance: The black oxide finish helps protect against rust and corrosion, ensuring longevity even in harsh environments such as marine or off-road applications.
• Precision Manufacturing: ARP fasteners are manufactured with tight tolerances and undergo rigorous quality control to ensure consistent fit and performance.
• Versatile Size and Style: The M6 x 1.00 metric thread size with a flanged hex head makes installation straightforward and secure, suitable for a wide range of mounting points.
• Heat Treatment: The specially heat-treated chromoly construction enhances strength and durability, making these bolts suitable for high-stress applications.
• Application Flexibility: These bolts are ideal for automotive assembly, boat and trailer hardware, or any project requiring high-strength fasteners.
• Easy to Use: The flanged hex head design allows for easy tightening with standard tools, providing a secure grip and reducing the risk of stripping or slipping.

Construction & Design

The ARP Hex Bolt Kits feature a robust construction designed for demanding environments. Made from 8740 chromoly steel, these fasteners are heat-treated to achieve a tensile strength of approximately 180,000 psi, ensuring they can handle high loads and stresses. The black oxide finish not only enhances corrosion resistance but also provides a sleek, professional appearance suitable for both performance and restoration projects. The flanged hex head design distributes clamping force evenly and simplifies installation, reducing the risk of damage during tightening.

The precise manufacturing process ensures consistent dimensions and thread engagement, which is critical for maintaining integrity and safety in high-performance applications. These bolts are engineered to provide a reliable, long-lasting fastening solution that supports your vehicle or equipment's structural integrity under extreme conditions.

Performance & Reliability

With their superior material and manufacturing quality, ARP Hex Bolt Kits deliver dependable performance in a variety of settings. Their high tensile strength and corrosion-resistant finish make them suitable for both everyday use and demanding racing or off-road environments. These fasteners help support the safe assembly of critical components, reducing the risk of failure and ensuring your project maintains its integrity over time.

Installation & Fitment

Installing the ARP Hex Bolt Kits is straightforward, thanks to their standard metric thread size and flanged hex head. They are designed to bolt directly into compatible threaded holes without the need for modifications. No cutting, drilling, or special tools are required beyond standard hand tools. For optimal performance, ensure that threads are clean and properly lubricated during installation. These bolts are intended for bolt-on applications and do not require any additional tuning or adjustments.

• Simply tighten to the manufacturer's specified torque for your application.
• Use a torque wrench to ensure proper clamping force and prevent over-tightening.

What's Included

• Complete set of ARP M6 x 1.00 chromoly hex bolts with black oxide finish
• Installation instructions and torque specifications (if provided)

Ideal For

• Automotive enthusiasts and professional builders
• High-performance engine assembly
• Marine and trailer hardware
• Restoration projects requiring durable, high-strength fasteners
• Any application demanding reliable, corrosion-resistant bolts

Emissions Note

This product is designed for use in non-emissions-critical applications. Please verify local regulations before use in emissions-sensitive environments.