ARP 12pt Hardware Kit

3/8˝-24 SAE Bolt Kit for Automotive, Marine, and Trailer Applications

Part #: 742-3000

Overview

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

Ideal for those seeking to enhance safety margins and achieve professional-grade results, the ARP 12pt Hardware Kit offers peace of mind with its exceptional tensile strength and heat-treated construction. These bolts are perfect for applications where strength, corrosion resistance, and consistent quality are critical, making them a versatile choice for a wide range of projects.

Key Features

The ARP 12pt Hardware Kit stands out with its high-quality materials and meticulous manufacturing process. Here are some of the key features that make this fastener kit a top choice:

• Constructed from 8740 chromoly steel, known for its excellent strength-to-weight ratio and toughness.
• Heat-treated to a tensile strength of 180,000 psi, providing a substantial safety margin over standard Grade 8 hardware.
• Black oxide finish offers corrosion resistance and a sleek, professional appearance.
• Designed with a 12-point (12pt) head for increased grip and ease of installation with standard tools.
• Available in a wide range of thread sizes, head styles, and options to suit various applications.
• Precision-machined to ensure proper fitment and torque consistency.
• Suitable for use in automotive, marine, trailer, and other heavy-duty applications where high strength fasteners are required.
• Manufactured by ARP, a trusted name in high-performance fasteners for over four decades.

Construction & Design

The ARP 12pt Hardware Kit features fasteners made from 8740 chromoly steel, a material renowned for its exceptional strength and durability. The bolts undergo a specialized heat-treatment process that enhances their tensile strength to 180,000 psi, ensuring they can withstand high-stress conditions without failure. The black oxide finish not only provides corrosion resistance but also reduces glare and adds a professional appearance to your assembly.

The 12-point head design allows for better grip and easier installation or removal in tight spaces, reducing the risk of stripping or rounding off the head. Each fastener is carefully machined to precise specifications, ensuring consistent quality and fitment across the entire kit. Whether used in critical engine components, suspension systems, or trailer assemblies, these bolts are engineered to meet or exceed industry standards for safety and performance.

Performance & Reliability

With a tensile strength of 180,000 psi, the ARP chromoly bolts provide a significant safety margin over typical Grade 8 hardware, making them suitable for demanding applications that require high reliability. Their superior material and heat treatment process help prevent stretching, shearing, or fatigue under load. The black oxide coating offers additional corrosion resistance, extending the service life of the fasteners even in harsh environments.

While these bolts are not designed to increase horsepower or torque directly, their high-quality construction ensures that your assembly remains secure and dependable under stress, supporting the overall integrity and safety of your project.

Installation & Fitment

The ARP 12pt Hardware Kit is designed for straightforward, bolt-on installation. The fasteners are compatible with standard tools and do not require any special equipment. Proper torque specifications should be followed as per ARP guidelines or your specific application requirements to ensure optimal clamping force and safety. No cutting, drilling, or specialized modifications are necessary when used in compatible applications.

• Easy to install with standard wrenches or sockets.
• Suitable for a wide range of automotive, marine, and trailer projects.
• Ensure proper torque to achieve maximum strength and safety.

What's Included

• Complete set of high-strength 12-point chromoly bolts in various sizes as specified for your application.
• All necessary hardware components for installation.
• Instruction sheet (if applicable) for proper torque and installation tips.

Ideal For

• Automotive enthusiasts building or repairing engines, suspensions, or chassis.
• Marine applications requiring corrosion-resistant, high-strength fasteners.
• Trailer builders and repair professionals seeking reliable hardware.
• Professionals and hobbyists demanding safety, durability, and performance in their fasteners.

Emissions Note

This product is designed for off-road, racing, or recreational use only and may not be legal for use on public roads or highways in certain jurisdictions. Please verify local regulations before installation.