ARP 12pt Hardware Kit

2011–2025 Subaru Forester / Subaru Impreza / Subaru WRX 5/16˝-18 SAE Bolt Kit

Part #: 641-0560

Overview

The ARP 12pt Hardware Kit is a premium-quality fastener solution designed for automotive enthusiasts and professionals who demand the best in strength, durability, and reliability. Whether you're building a high-performance engine, upgrading suspension components, or securing critical parts on your vehicle, this hardware kit provides the confidence and performance you need. Crafted from top-grade materials and engineered for precision, these fasteners ensure a secure fit and long-lasting performance in demanding conditions.

Ideal for street, spirited driving, or even track use, the ARP 12pt Hardware Kit helps support your vehicle's performance upgrades by providing fasteners that can withstand high stress and torque loads. With ARP's reputation for quality and innovation, this kit is a trusted choice for automotive enthusiasts who want to ensure their hardware is as reliable as their vehicle's performance.

Key Features

The ARP 12pt Hardware Kit offers a combination of advanced materials and meticulous engineering to deliver superior strength and corrosion resistance. Here are some of the key features:

• Constructed from specially heat-treated 8740 chromoly steel, providing exceptional tensile strength and durability for demanding applications.
• Black oxide finish enhances corrosion resistance and provides a sleek, professional appearance.
• Nominally rated at 180,000 psi tensile strength, offering a significant safety margin over standard Grade 8 hardware.
• Designed with 12-point (12pt) head configuration for increased engagement and easier installation in tight spaces.
• Available in a wide range of thread sizes, head styles, and options to suit various automotive needs.
• Precision-machined to exact specifications for a perfect fit and reliable torque retention.
• Suitable for use on cars, boats, trailers, and other applications requiring high-quality fasteners.
• Manufactured by ARP, a leader in high-performance fasteners for motorsports and automotive applications.
• Engineered to provide a substantial margin of safety and long-term reliability in high-stress environments.

Construction & Design

The ARP 12pt Hardware Kit features fasteners made from 8740 chromoly steel, a material renowned for its excellent strength-to-weight ratio and toughness. Each fastener undergoes a proprietary heat-treatment process to achieve a tensile strength rating of 180,000 psi, ensuring they can handle high torque and stress without failure. The black oxide finish not only provides a sleek appearance but also offers enhanced corrosion resistance, making these fasteners suitable for both indoor and outdoor applications.

The 12-point head design allows for increased engagement with tools, reducing the risk of stripping and enabling easier installation and removal in tight or hard-to-reach spaces. Precision machining ensures a perfect fit, maintaining proper torque and clamping force during use. These features collectively contribute to the fasteners' long-lasting performance and reliability under demanding conditions.

Installation & Fitment

The ARP 12pt Hardware Kit is a straightforward, bolt-on upgrade that requires no special tools beyond standard wrenches or sockets. The fasteners are designed to fit standard 5/16˝-18 SAE threads, making them compatible with a wide range of automotive applications. No cutting, drilling, or special tuning is required for installation. Simply replace your existing hardware with these high-strength fasteners, torque to manufacturer specifications, and enjoy the peace of mind that comes with premium quality components.

• Easy, direct replacement for factory or worn fasteners
• No additional modifications or adjustments needed
• Suitable for use on various automotive, marine, and trailer applications

What's Included

• Complete set of 12pt fasteners in the specified thread size and head style
• All necessary hardware components for installation
• Instruction sheet (if applicable)

Ideal For

• Automotive enthusiasts upgrading or replacing hardware on performance builds
• Professionals seeking reliable, high-strength fasteners for critical applications
• Marine and trailer applications requiring durable, corrosion-resistant fasteners
• Anyone looking for a safety margin above standard hardware specifications