ARP Hex Bolt Kits

1/4˝-20 SAE Bolt Kit for Automotive, Marine, and Trailer Applications

Part #: 650-0750

Overview

The ARP Hex Bolt Kits are premium-quality fasteners designed to provide reliable, high-strength fastening solutions for a wide range of automotive, marine, and trailer applications. Crafted from top-grade materials and engineered for durability, these bolts are ideal for enthusiasts and professionals seeking to ensure safety and performance in their projects. Whether you're assembling engine components, securing trailer parts, or performing custom modifications, these ARP bolts deliver peace of mind with their superior tensile strength and precision manufacturing.

Designed for those who demand the best, ARP's hex bolt kits are perfect for applications where strength, reliability, and corrosion resistance are critical. Their black oxide finish not only enhances appearance but also provides additional corrosion protection, making them suitable for both indoor and outdoor use. With their robust construction and precise threading, these bolts help support the integrity of your assembly, ensuring that your vehicle or equipment performs optimally under demanding conditions.

Key Features

ARP Hex Bolt Kits are engineered with a focus on quality and performance, offering several key features that set them apart from standard hardware:

• Manufactured from high-strength 8740 chromoly steel, providing exceptional tensile strength of approximately 180,000 psi, which exceeds typical Grade 8 hardware for added safety margin.
• Heat-treated to ensure consistent hardness and durability, making these bolts resistant to stretching and fatigue during high-stress applications.
• Black oxide finish offers corrosion resistance and a sleek, professional appearance suitable for visible engine components or custom builds.
• Precisely machined with flanged hex heads for easy installation and removal using standard tools, reducing the risk of stripping or rounding off the fastener head.
• Nominally rated at 1/4˝-20 thread size, compatible with a wide range of automotive and industrial components requiring this standard size.
• Underhead length of 0.750 inches ensures proper engagement and clamping force for various assembly needs.
• Designed for versatility, these bolts are suitable for securing engine parts, brackets, mounts, and other critical components where high strength is essential.
• Trusted by professionals and enthusiasts alike for their consistent quality and reliable performance in demanding environments.
• Meets or exceeds industry standards for fastener strength and quality, ensuring your projects are built with confidence.

Construction & Design

The ARP Hex Bolt Kits are constructed from 8740 chromoly steel, a material renowned for its strength-to-weight ratio and toughness. The bolts undergo a specialized heat treatment process that enhances their tensile strength and fatigue resistance, making them suitable for high-performance applications. The black oxide finish not only provides corrosion resistance but also reduces glare and adds a professional appearance to your assembly.

The flanged hex head design allows for easy installation and removal with standard wrenches or sockets, providing a secure grip and minimizing the risk of damage during tightening or removal. The precise threading ensures smooth engagement and consistent torque application, which is critical for maintaining the integrity of your assembly. The underhead length of 0.750 inches offers ample thread engagement for most applications, ensuring a strong, reliable connection.

Performance & Reliability

These ARP bolts are engineered to support high-stress environments, making them suitable for performance builds, racing, off-road adventures, or heavy-duty industrial use. Their high tensile strength provides a substantial safety margin over typical hardware, reducing the risk of failure under load. The durable construction and corrosion-resistant finish help maintain their integrity over time, even in harsh conditions.

Installation & Fitment

Installing the ARP Hex Bolt Kits is straightforward, thanks to their standard 1/4˝-20 thread size and precise dimensions. These bolts are designed to be a direct replacement for OEM or other aftermarket hardware requiring the same specifications. No special tools or modifications are necessary, and they can be installed using common hand tools. Their robust design ensures a secure fit, supporting the longevity and safety of your assembly.

• Easy bolt-on installation with no need for special tools or modifications
• Compatible with a wide range of automotive, marine, and trailer components requiring 1/4˝-20 fasteners
• Ideal for high-performance, off-road, or heavy-duty applications where strength and reliability are paramount

What's Included

• Complete set of ARP Hex Bolts in the specified size and length
• Installation instructions and warranty information

Ideal For

• Automotive enthusiasts performing engine or chassis modifications
• Marine applications requiring corrosion-resistant fasteners
• Trailer assembly and repair
• High-stress industrial or mechanical projects
• Professional builders and DIYers seeking reliable, high-strength hardware

Emissions Note

This product is a fastener and does not impact vehicle emissions. It is intended for use in applications compliant with local regulations or for off-road and race use only. Always verify compatibility with your specific vehicle or project requirements before installation.