ARP Hex Bolt Kits

2010–2025 Universal / Automotive Applications M10 x 1.25

Part #: 663-1009

Overview

The ARP Hex Bolt Kits are premium-quality fasteners designed to provide reliable, high-strength connections for a wide range of automotive, marine, and trailer applications. Crafted from heat-treated 8740 chromoly steel, these bolts deliver exceptional durability and tensile strength, making them an ideal choice for enthusiasts and professionals seeking to ensure the safety and integrity of their assemblies. Whether you're working on engine components, chassis, or custom builds, these ARP bolts offer peace of mind with their superior material properties and precise manufacturing standards.

Designed for those who demand the best in fastener technology, the ARP Hex Bolt Kits are perfect for both daily drivers and high-performance applications. Their black oxide finish not only enhances corrosion resistance but also provides a sleek, professional appearance. With a nominal tensile strength of 180,000 psi, these bolts significantly exceed the strength of standard Grade 8 hardware, offering an extra margin of safety for critical fastenings.

Key Features

The ARP Hex Bolt Kits incorporate several advanced features that set them apart from conventional fasteners:

• Manufactured from heat-treated 8740 chromoly steel, ensuring exceptional strength and toughness under demanding conditions.
• Black oxide finish provides corrosion resistance and a professional, finished look suitable for high-performance builds.
• Nominal tensile strength of 180,000 psi offers a substantial safety margin over standard hardware, ideal for critical applications.
• Flanged hex head design allows for easy installation and removal with standard tools, providing a secure grip and even load distribution.
• Precisely machined threads and underhead length of 70mm ensure proper fitment and reliable clamping force.
• Versatile application across automotive, marine, and trailer projects, making these bolts a valuable addition to any toolkit.
• Designed to meet or exceed industry standards for quality and performance, ensuring long-lasting reliability.
• Suitable for use in high-stress environments where strength and safety are paramount.
• Compatible with a wide range of fastener sizes and configurations, simplifying replacement and upgrade processes.

Construction & Design

The ARP Hex Bolt Kits are meticulously engineered from 8740 chromoly steel, a material renowned for its high strength-to-weight ratio and excellent toughness. The heat-treatment process enhances the steel's mechanical properties, ensuring the bolts can withstand extreme loads and vibrations without failure. The black oxide finish not only provides corrosion resistance but also reduces glare and adds a professional aesthetic to your assembly.

The flanged hex head design facilitates easy installation and removal using standard wrenches or sockets, while the precise threading ensures a secure fit. The underhead length of 70mm is optimized for a variety of applications, providing ample engagement and clamping force. These bolts are manufactured to strict tolerances, ensuring consistent quality and reliable performance in demanding environments.

Installation & Fitment

The ARP Hex Bolt Kits are designed for straightforward, bolt-on installation. They utilize standard hex heads, allowing for easy tightening and loosening with common tools. No special modifications, cutting, or drilling are required for most applications. Simply replace your existing fasteners with these high-strength bolts to upgrade your assembly's safety and durability. Always ensure proper torque specifications are followed to achieve optimal clamping force and prevent over-tightening.

• Easy to install with standard tools
• No cutting, drilling, or special tuning required
• Suitable for a wide range of automotive, marine, and trailer applications

What's Included

• Complete set of ARP Hex Bolts in the specified size and thread pitch
• All necessary hardware for installation
• Instruction sheet for proper torque and installation guidelines

Ideal For

• Automotive enthusiasts performing engine or chassis upgrades
• Marine applications requiring high-strength fasteners resistant to corrosion
• Trailer builders and repair professionals seeking reliable, durable hardware
• Anyone needing high-quality, heat-treated fasteners for critical assemblies