ARP 12pt Hardware Kit

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

Part #: 643-3250

Overview

The ARP 12pt Hardware Kit is a premium fastener solution designed for automotive enthusiasts, builders, and professionals who demand the highest quality hardware for their projects. Whether you're assembling a high-performance engine, securing components on a boat, or outfitting a trailer, these ARP chromoly bolts provide unmatched strength, durability, and reliability. Engineered with precision and built to exacting standards, this hardware kit ensures your applications are held together with the best possible fasteners.

Ideal for those seeking to upgrade from standard hardware, the ARP 12pt kit offers peace of mind during demanding driving conditions, off-road adventures, or marine environments. Its robust construction and heat-treated materials help support the integrity of your assembly, reducing the risk of failure and ensuring long-lasting performance. With ARP's reputation for quality, this hardware kit is a trusted choice for professionals and enthusiasts alike.

Key Features

Designed with performance and safety in mind, the ARP 12pt Hardware Kit offers several key features:

• Constructed from high-strength 8740 chromoly steel, known for its exceptional toughness and fatigue resistance.
• Heat-treated to a tensile strength of 180,000 psi, providing a significant safety margin over standard Grade 8 hardware.
• Black oxide finish offers corrosion resistance and a sleek appearance, suitable for both performance and aesthetic purposes.
• Available in a wide range of thread sizes, head styles, and configurations to suit various applications.
• Precision-machined threads and heads ensure proper fitment and ease of installation.
• Designed for use in high-stress environments, including automotive, marine, and trailer applications.
• Manufactured to meet or exceed industry standards for quality and safety.
• Ideal for custom builds, restorations, or replacing worn or damaged fasteners with premium-grade hardware.
• Backed by ARP's reputation for innovation and reliability in high-performance fasteners.

Construction & Design

The ARP 12pt Hardware Kit features a meticulously engineered design, utilizing 8740 chromoly steel that is heat-treated to achieve optimal strength and durability. The black oxide finish not only enhances corrosion resistance but also provides a professional, finished look. The precision machining of threads and heads ensures a perfect fit, reducing installation time and minimizing the risk of cross-threading or damage. This hardware is built to withstand the rigors of high-performance applications, including extreme temperatures, vibration, and mechanical stress.

Installation & Fitment

The ARP 12pt Hardware Kit is designed for straightforward, bolt-on installation. Its precision-machined threads and heads ensure compatibility with standard fastener sizes and applications. No special tools beyond typical hand or socket wrenches are required. Due to the standardized design, installation is quick and secure, making it suitable for both professional workshops and DIY enthusiasts. Always follow torque specifications recommended for your specific application to ensure safety and optimal performance.

• Easy to install with common hand tools.
• No cutting, drilling, or special modifications required.
• Suitable for a wide range of automotive, marine, and trailer uses.

What's Included

• Complete set of high-strength 12-point fasteners in various sizes and lengths as specified for your application.
• All necessary hardware components for a comprehensive installation.
• Instruction sheet or technical specifications (if applicable).

Ideal For

• Performance automotive builds and upgrades
• Marine applications requiring corrosion-resistant fasteners
• Trailer assembly and repair
• Engine rebuilds and component securing
• Enthusiasts who demand the highest quality hardware for safety and reliability