ARP 12pt Hardware Kit

2011–2025 Subaru Forester / Subaru Impreza / Subaru WRX 2.0L Turbo

Part #: 671-1001

Overview

The ARP 12pt Hardware Kit is a premium fastener solution designed for automotive enthusiasts and professionals who demand the highest quality hardware for their builds. Whether you're assembling a performance engine, upgrading suspension components, or securing critical parts on your vehicle, this kit provides reliable, high-strength fasteners to ensure safety and durability. Made from top-grade materials, these bolts are engineered to withstand demanding conditions, making them ideal for street, spirited driving, and even some off-road applications.

With ARP's reputation for precision and strength, this hardware kit helps support your vehicle's performance goals by providing secure, vibration-resistant fastening. The M8 x 1.25 metric thread bolts are perfect for a wide range of applications, from engine assembly to chassis modifications, ensuring a perfect fit and long-lasting performance. Designed for those who want to upgrade from standard hardware, this kit offers peace of mind and confidence in every drive.

Key Features

The ARP 12pt Hardware Kit is built with the serious automotive enthusiast in mind, featuring advanced materials and manufacturing processes that set it apart from standard hardware. Here are some of the key features:

• Constructed from heat-treated 8740 chromoly steel, providing exceptional strength and durability for demanding applications.
• Black oxide finish offers corrosion resistance and a sleek, professional appearance, suitable for both engine bays and exposed components.
• Nominal tensile strength of 180,000 psi ensures a substantial safety margin over typical Grade 8 hardware, supporting high-stress environments.
• Designed with a 12-point head configuration, allowing for increased torque application and easier installation in tight spaces.
• Available in a wide range of thread sizes, head styles, and lengths to accommodate various vehicle and application needs.
• Precision manufacturing and strict quality control standards ensure consistent, reliable performance.
• Ideal for engine assembly, suspension upgrades, or any application requiring high-quality fasteners.
• Compatible with a variety of vehicles and custom builds, providing versatility for automotive projects.
• Backed by ARP's reputation for innovation and excellence in fastener technology.

Construction & Design

The ARP 12pt Hardware Kit features fasteners made from 8740 chromoly steel, a material renowned for its high tensile strength and toughness. Each bolt undergoes a proprietary heat-treating process that enhances its mechanical properties, ensuring it can withstand the stresses of high-performance driving. The black oxide finish not only provides corrosion resistance but also reduces glare and adds a professional look to your build.

The 12-point head design allows for better access and higher torque application compared to traditional hex heads, especially in tight or hard-to-reach areas. This design also reduces the risk of stripping the head during installation or removal. The precise threading and manufacturing tolerances ensure a secure fit and consistent clamping force, critical for maintaining the integrity of your assembly over time.

Performance & Reliability

Designed for high-stress applications, these fasteners support your vehicle's performance and safety. The superior material quality and manufacturing standards mean you can rely on these bolts to maintain their strength and integrity under demanding conditions. Whether you're building a high-performance engine, upgrading suspension components, or securing critical parts, the ARP hardware provides the confidence that your fasteners will perform as intended.

Installation & Fitment

The ARP 12pt Hardware Kit is designed for straightforward installation with standard tools. The bolts are compatible with existing threaded holes that accept M8 x 1.25 fasteners. No special modifications or tuning are required, making this kit suitable for both professional mechanics and DIY enthusiasts. Always follow the specific torque specifications provided by ARP or your vehicle manufacturer to ensure proper installation and optimal performance.

• Easy bolt-on installation with common hand tools
• No cutting, drilling, or special modifications needed

What's Included

• Complete set of high-strength M8 x 1.25 bolts in various lengths and head styles
• All necessary nuts, washers, and hardware components for a comprehensive installation kit
• Detailed installation instructions for proper torque and safety

Ideal For

• Engine assembly and rebuilds
• Suspension and chassis upgrades
• Performance modifications requiring high-quality fasteners
• Enthusiasts seeking reliable hardware for daily driving or spirited use

Emissions Note

This hardware kit is intended for use in off-road, racing, or custom applications. It is not specifically certified for emissions compliance or 50-state legal use. Always verify local regulations before installation.