ARP 12pt Hardware Kit

2010–2025 Subaru Forester / Subaru Impreza / Subaru WRX / Subaru STI 2.0L Turbo

Part #: 673-1003

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. Crafted by ARP, a trusted name in high-performance fasteners, this kit provides the essential hardware needed to securely assemble and maintain critical components on your vehicle, boat, or trailer. Whether you're building a race car, restoring a classic, or upgrading your daily driver, these high-strength bolts ensure a secure fit and peace of mind under demanding conditions.

Constructed from top-grade materials and heat-treated for maximum strength, the ARP 12pt Hardware Kit is ideal for applications where safety and performance are paramount. Its versatile design makes it suitable for a wide range of uses, from engine assembly to chassis modifications, providing you with reliable fasteners that can handle the stresses of spirited driving and heavy-duty use.

Key Features

The ARP 12pt Hardware Kit offers a combination of advanced materials and precision engineering to deliver superior performance and longevity. Key features include:

• High-Strength Material: Made from ARP's proprietary 8740 chromoly steel, these bolts are heat-treated to achieve a tensile strength of 180,000 psi, providing a significant safety margin over standard Grade 8 hardware.
• Corrosion Resistance: Finished with a durable black oxide coating, these fasteners resist corrosion and rust, ensuring long-lasting performance in various environmental conditions.
• Versatile Threading: The M10 x 1.25 thread size is compatible with a wide range of automotive and industrial applications, making this kit a versatile choice for many projects.
• Precision Manufacturing: ARP's meticulous manufacturing process ensures consistent thread pitch, proper fitment, and reliable torque characteristics, reducing the risk of stripping or failure.
• Complete Kit: Includes a comprehensive set of bolts designed to meet or exceed OEM standards, simplifying your assembly process and ensuring all fasteners are of uniform high quality.
• Heat-Treated for Strength: The specially heat-treated chromoly fasteners provide an extra margin of safety, supporting demanding applications and high-stress environments.
• Wide Range of Sizes and Styles: Available in various thread sizes, head styles, and lengths to suit your specific needs, whether for engine components, suspension, or other critical systems.

Construction & Design

The ARP 12pt Hardware Kit is engineered with precision and durability in mind. The fasteners are crafted from ARP's renowned 8740 chromoly steel, a material known for its exceptional strength-to-weight ratio and toughness. Each bolt undergoes a proprietary heat-treating process that enhances its tensile strength to 180,000 psi, ensuring it can withstand the rigors of high-performance applications.

The black oxide finish not only provides corrosion resistance but also offers a sleek, professional appearance. The 12-point head design allows for increased torque application and easier access in tight spaces, reducing the risk of stripping or rounding off the fastener head during installation or removal. The threads are machined to exact specifications, ensuring a perfect fit and consistent torque characteristics, which helps prevent thread galling and ensures reliable clamping force.

Performance & Reliability

Designed for high-stress environments, the ARP 12pt Hardware Kit provides a reliable fastening solution that supports the integrity of your assembly. Its superior tensile strength and corrosion resistance make it suitable for both daily driving and competitive racing. These fasteners help maintain proper torque and clamping force over time, reducing the likelihood of loosening or failure under vibration and thermal cycling.

Installation & Fitment

The ARP 12pt Hardware Kit is a straightforward, bolt-on upgrade that requires no special tools beyond standard wrenches or sockets. Its precise threading and high-quality construction ensure a secure fit and easy installation. Always follow torque specifications recommended by ARP or your vehicle's manufacturer to ensure optimal performance. No cutting, drilling, or special modifications are necessary, making this kit a convenient upgrade for your vehicle or project.

• Includes all necessary bolts for your application, ensuring a complete and consistent hardware set.

What's Included

• High-strength M10 x 1.25 chromoly bolts
• Complete set designed for various fastening needs
• All hardware manufactured to ARP's strict quality standards

Ideal For

• Automotive enthusiasts building or upgrading engines and chassis
• Professional mechanics requiring reliable, high-strength fasteners
• Restorers seeking OEM-quality hardware with enhanced strength
• Marine and trailer applications demanding corrosion-resistant fasteners