ARP Hex Bolt Kits

1/4˝-28 SAE Hex Bolt Kit

Part #: 750-0750

Overview

The ARP Hex Bolt Kits are premium-quality fasteners designed for a wide range of automotive, marine, and trailer applications. Crafted from high-strength chromoly steel, these bolts provide exceptional durability and reliability, making them an ideal choice for enthusiasts and professionals who demand the best in fastening technology. Whether you're assembling a custom engine build, securing components in a boat, or ensuring trailer integrity, these ARP bolts deliver peace of mind with their superior strength and heat-treated construction.

Designed for those who value safety, performance, and longevity, these fasteners help support your vehicle's integrity under demanding conditions. Their black oxide finish not only enhances corrosion resistance but also provides a sleek, professional appearance in your engine bay or assembly area. With ARP's reputation for quality and precision, these hex bolts are a trusted solution for high-stress fastening needs.

Key Features

ARP Hex Bolt Kits incorporate several advanced features that set them apart from standard hardware:

• Material Excellence: Made from 8740 chromoly steel, these bolts are heat-treated to achieve a tensile strength of 180,000 psi, offering a significant safety margin over typical Grade 8 hardware.
• Heat Treatment: The specially heat-treated chromoly construction ensures consistent strength and durability, even under high temperatures and stress.
• Finish & Corrosion Resistance: The black oxide coating provides excellent corrosion resistance, extending the lifespan of the fasteners in harsh environments.
• Precision Manufacturing: Manufactured to strict standards, these bolts feature a flanged hex head for easy installation and removal with standard tools.
• Versatile Application: Suitable for automotive, marine, and trailer use, these bolts are designed to handle a variety of fastening tasks requiring high strength and reliability.
• Nominal Size & Thread: 1/4 inch diameter with 28 threads per inch, ensuring compatibility with a wide range of components and assemblies.
• Underhead Length: 0.750 inches, providing ample engagement for secure fastening.

Construction & Design

The ARP Hex Bolt Kits are engineered with precision to ensure a perfect fit and maximum strength. The use of 8740 chromoly steel—a material renowned for its toughness and fatigue resistance—ensures these bolts can withstand the rigors of high-performance applications. The heat treatment process enhances tensile strength and overall durability, making them suitable for demanding environments.

The black oxide finish not only adds a sleek aesthetic but also provides a protective barrier against corrosion, especially important in marine or outdoor applications. The flanged hex head design allows for easy torque application with standard wrenches or sockets, ensuring secure installation without damaging the fastener or surrounding components.

Performance & Reliability

These fasteners are rated at an impressive 180,000 psi tensile strength, offering a substantial safety margin over conventional Grade 8 hardware. This high strength helps support increased loads and stresses, making them ideal for high-performance builds, off-road vehicles, or any application where reliability is critical. Their durable construction ensures consistent performance over time, even in challenging conditions.

Installation & Fitment

The ARP Hex Bolt Kits are designed for straightforward, bolt-on installation. They utilize standard 1/4˝-28 threads and feature a flanged hex head that fits standard tools, allowing for quick and secure fastening. No special tools or modifications are required for installation, making these bolts suitable for both professional mechanics and DIY enthusiasts. Their precise dimensions ensure a proper fit in compatible threaded holes, providing a secure and reliable connection every time.

What's Included

• Complete set of ARP Hex Bolts with 1/4˝-28 threads
• Black oxide finish for corrosion resistance
• Detailed installation instructions (if provided)

Ideal For

• High-performance automotive builds
• Marine applications requiring durable fasteners
• Towing and trailer assembly
• Enthusiasts seeking reliable, high-strength hardware
• Professional mechanics and fabricators

Emissions Note

This product is designed for use in applications where high-strength fasteners are required. Please verify compatibility with your specific project requirements. ARP fasteners are generally intended for off-road, racing, or non-emissions-critical applications and may not be legal for use on public roads in all jurisdictions. Consult local regulations before installation.