ARP 12pt Hardware Kit

3/8˝-16 SAE Bolt Kit for Automotive, Marine, and Trailer Applications

Part #: 642-1250

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. Whether you're assembling a high-performance engine, securing trailer components, or outfitting a boat, these ARP chromoly bolts provide the peace of mind that comes with using industry-leading hardware. Engineered with precision and heat-treated for maximum strength, this kit ensures your project maintains integrity under demanding conditions.

Ideal for those seeking to upgrade from standard hardware, the ARP 12pt Bolt Kit offers a significant safety margin and consistent quality. Its versatile design makes it suitable for a wide range of applications, from daily drivers to race cars, marine vessels, and trailers. With ARP's reputation for excellence, you can trust these fasteners to deliver superior performance and long-lasting reliability.

Key Features

The ARP 12pt Hardware Kit stands out due to 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 specially heat-treated 8740 chromoly steel, offering exceptional strength and toughness.
• Black oxide finish provides corrosion resistance and a sleek, professional appearance.
• Nominal tensile strength of 180,000 psi ensures a substantial safety margin over standard Grade 8 hardware.
• Designed with 3/8˝-16 SAE thread size, compatible with a wide variety of automotive and industrial components.
• 12-point (12pt) head design allows for increased torque application and easier installation in tight spaces.
• Available in a range of thread sizes and head styles to suit diverse project needs.
• Manufactured to strict quality standards for consistent performance and reliability.
• Perfect for high-stress applications where strength and safety are paramount.

Construction & Design

The ARP 12pt Hardware Kit features precision-machined fasteners crafted from 8740 chromoly steel, a material renowned for its excellent strength-to-weight ratio and durability. Each bolt undergoes a rigorous heat-treating process to achieve a tensile strength of 180,000 psi, ensuring they can withstand high loads and stress without failure. The black oxide finish not only enhances corrosion resistance but also provides a professional, finished look suitable for both performance and restoration projects.

The 12-point head design offers increased contact surface area, allowing for higher torque application and reducing the risk of stripping or rounding off the head during installation. This design is especially beneficial in tight or hard-to-reach spaces, making installation smoother and more secure. The kit's thread size of 3/8˝-16 SAE is a common standard, ensuring compatibility with many automotive and industrial components.

Performance & Reliability

Engineered for demanding environments, these ARP fasteners deliver consistent performance in high-stress applications. Their superior tensile strength provides an extra margin of safety, making them suitable for critical fastening points in engines, suspensions, and structural assemblies. The high-quality materials and manufacturing processes ensure that these bolts maintain their integrity over time, even in harsh conditions such as exposure to moisture, heat, and vibration.

Installation & Fitment

The ARP 12pt Hardware Kit is designed for straightforward, bolt-on installation. Its standard 3/8˝-16 thread size fits a wide range of components without the need for modifications. No special tools beyond standard wrenches are required, and the 12-point head allows for easy tightening and loosening in confined spaces. As with all fasteners, proper torque specifications should be followed to ensure optimal performance and safety. These bolts are suitable for use in automotive, marine, and trailer applications where high strength and reliability are essential.

• Easy to install with standard hand tools
• No cutting, drilling, or special modifications required
• Ideal for high-performance and heavy-duty applications

What's Included

• Complete set of ARP 12pt chromoly bolts in the specified thread size
• All necessary hardware for installation
• Instruction sheet for proper torque and installation guidelines

Ideal For

• Automotive enthusiasts and racers
• Engine builders and mechanics
• Marine and trailer applications requiring high-strength fasteners
• Restoration projects where quality hardware is essential

Emissions Note

This product is designed for use in non-emissions-critical applications. Please verify compatibility with your local regulations before use in emissions-sensitive environments.