ARP Hex Bolt Kits

2010–2025 Universal / Automotive 1/4" - 20 SAE Bolt Kit

Part #: 650-0750

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 top-grade materials and engineered for durability, these bolts are ideal for enthusiasts and professionals seeking to enhance the safety and performance of their projects. Whether you're assembling engine components, securing chassis parts, or performing custom modifications, ARP's hex bolt kits deliver peace of mind with their superior tensile strength and precision manufacturing.

Designed for those who demand the best, these bolts help support increased safety margins and long-lasting performance. Their robust construction ensures they can withstand harsh conditions, making them suitable for daily drivers, off-road builds, and high-performance applications alike. With ARP's reputation for quality and innovation, you can trust these fasteners to meet or exceed industry standards.

Key Features

ARP Hex Bolt Kits are engineered with a focus on strength, durability, and ease of use. Key features include:

• Manufactured from heat-treated 8740 chromoly steel, offering exceptional strength and toughness for demanding applications.
• Nominal tensile strength of 180,000 psi, providing a significant safety margin over standard Grade 8 hardware.
• Black oxide finish enhances corrosion resistance and provides a sleek, professional appearance.
• Precisely machined flanged hex head design allows for easy installation and removal with standard tools, reducing the risk of stripping or damage.
• Underhead length of 0.750 inches ensures proper engagement and secure fastening in various assembly configurations.
• Designed for 1/4" - 20 thread size, compatible with a wide range of components and mounting points.
• Versatile application across automotive, marine, trailer, and industrial projects, making it a reliable choice for multiple industries.
• Manufactured to strict quality control standards, ensuring consistent performance and fitment.
• Ideal for high-stress environments where safety and reliability are paramount.

Construction & Design

The ARP Hex Bolt Kits feature a one-piece, heat-treated chromoly steel construction that provides superior strength and fatigue resistance. The black oxide finish not only offers corrosion protection but also reduces glare and enhances the bolt's appearance. The flanged hex head design ensures a secure grip during installation, minimizing the risk of stripping or rounding off the head. The precise threading and dimensions are engineered for a perfect fit, ensuring consistent torque application and reliable clamping force. These bolts are manufactured with tight tolerances and undergo rigorous quality control to meet or exceed industry standards, making them a trusted choice for demanding applications.

Performance & Reliability

With a tensile strength of 180,000 psi, these chromoly bolts provide a substantial safety margin over typical hardware, supporting increased load capacity and reducing the risk of failure. Their high-quality material and heat treatment process ensure long-lasting performance even under extreme conditions. Whether used in high-performance engines, suspension systems, or structural assemblies, these bolts help maintain integrity and safety over time. Their corrosion-resistant finish ensures durability in harsh environments, making them suitable for both indoor and outdoor use.

Installation & Fitment

The ARP Hex Bolt Kits are designed for straightforward, bolt-on installation. They utilize standard 1/4" - 20 threads and feature a flanged hex head for easy tightening and removal with common hand tools. No special tools or modifications are required for most applications. Proper torque specifications should be followed to ensure optimal clamping force and safety. These bolts are compatible with a wide range of components and are suitable for various automotive, marine, and industrial uses. Their precise dimensions and high-quality manufacturing ensure a secure fit and reliable performance in demanding environments.

What's Included

• Complete set of ARP chromoly hex bolts, 1/4" - 20 thread size
• High-strength fasteners with black oxide finish
• Installation instructions (if applicable)

Ideal For

• Automotive enthusiasts performing engine or chassis assembly
• Marine applications requiring corrosion-resistant fasteners
• Trailer and industrial projects demanding high-strength hardware
• High-performance builds where safety and reliability are critical