ARP 12pt Hardware Kit

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

Part #: 671-1016

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 exceptional strength and durability. Engineered with precision and built to withstand demanding conditions, this hardware kit ensures reliable performance and peace of mind.

Ideal for those seeking to upgrade from standard hardware, the ARP 12pt Bolt Kit offers a significant safety margin and superior tensile strength. Its versatile design makes it suitable for a wide range of applications, from daily drivers to racing and off-road builds. With ARP's reputation for quality and innovation, you can trust these fasteners to deliver consistent, long-lasting performance in your vehicle or equipment.

Key Features

The ARP 12pt Hardware Kit stands out due to its advanced materials and meticulous manufacturing process. Here are some of its key features:

• Constructed from heat-treated 8740 chromoly steel, providing exceptional strength and toughness for demanding applications.
• Black oxide finish offers corrosion resistance and a sleek, professional appearance.
• Nominally rated at 180,000 psi tensile strength, offering a substantial safety margin over standard Grade 8 hardware, making it suitable for high-stress environments.
• Designed with a 12-point (12pt) head configuration, allowing for easier installation and removal in tight spaces, and providing better torque transfer compared to standard hex heads.
• Available in a wide range of thread sizes, head styles, and options to suit various project needs.
• Precision-machined threads ensure proper fitment and optimal clamping force, reducing the risk of stripping or failure.
• Manufactured to strict quality standards, ensuring consistent performance and reliability across all fasteners.
• Suitable for use in automotive, marine, trailer, and industrial applications where high-strength fasteners are required.
• Designed to withstand high temperatures and harsh environments, maintaining integrity over time.

Construction & Design

The ARP 12pt Hardware Kit features a robust construction using heat-treated 8740 chromoly steel, a material renowned for its excellent strength-to-weight ratio and durability. The black oxide finish not only enhances corrosion resistance but also provides a professional look suitable for high-performance builds. The 12-point head design allows for better grip and easier access in confined spaces, reducing installation time and effort. Each fastener is carefully machined to precise specifications, ensuring a perfect fit and optimal clamping force, which is critical for maintaining the integrity of your assembly.

Performance & Reliability

These fasteners are engineered to support demanding applications, offering a tensile strength of 180,000 psi—significantly higher than standard hardware. This means you'll get increased safety margins and improved reliability, especially in high-stress environments such as engine assembly, suspension components, or structural mounts. The ARP bolts help support the integrity of your build, reducing the risk of failure under extreme conditions. Their corrosion-resistant finish ensures longevity, even in marine or off-road settings.

Installation & Fitment

The ARP 12pt Hardware Kit is designed for straightforward, bolt-on installation. Its precision threads and high-quality materials ensure a secure fit without the need for special tools beyond standard wrenches. No cutting, drilling, or complex modifications are required. Always follow torque specifications provided by ARP or your vehicle's service manual to ensure proper clamping force and safety.

• Compatible with a wide range of automotive, marine, and trailer applications.
• Suitable for use in high-performance engines, chassis, and structural components.

What's Included

• Complete set of high-strength M8 x 1.25 chromoly bolts
• Assorted washers and hardware as specified for various applications
• Installation instructions and torque specifications

Ideal For

• Performance automotive builds
• Engine assembly and maintenance
• Marine and boat hardware upgrades
• Trailer and structural component fastening
• Enthusiasts seeking reliable, high-strength fasteners for demanding environments

Emissions Note

This hardware kit is intended for use in non-emissions-critical applications. Always verify compatibility with your local regulations before installation. ARP fasteners are designed for performance and safety, but do not inherently meet specific emissions standards.