ARP 12pt Hardware Kit

2010–2025 Universal Fitment for Cars, Boats, and Trailers

Part #: 675-1009

Overview

The ARP 12pt Hardware Kit is a premium-quality fastener solution designed to meet the demanding needs of automotive, marine, and trailer applications. Crafted from high-strength materials and engineered for durability, this bolt kit provides a reliable fastening option for enthusiasts and professionals alike. Whether you're assembling a custom engine build, securing components on your boat, or ensuring trailer integrity, these ARP fasteners deliver exceptional performance and peace of mind.

Ideal for those seeking to upgrade from standard hardware, the ARP 12pt Bolt Kit offers superior tensile strength and corrosion resistance. Its robust construction ensures that your critical connections remain secure under stress, vibration, and varying environmental conditions. With ARP's reputation for quality and precision, this hardware kit is a trusted choice for high-performance applications and everyday use.

Key Features

The ARP 12pt Hardware Kit stands out with its combination of advanced materials and meticulous manufacturing processes. Here are some of its 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 performance and aesthetic purposes.
• Nominally rated at 180,000 psi tensile strength, offering a significant safety margin over standard Grade 8 hardware, ensuring reliability in critical fastening points.
• Designed with a 12-point (12pt) head configuration, allowing for easier installation and removal in tight spaces, and providing increased torque transfer capability.
• Available in a wide range of thread sizes, head styles, and options to suit various project requirements.
• Precision-machined to strict tolerances for a perfect fit and consistent performance across all fasteners.
• Suitable for automotive, marine, trailer, and industrial applications where high-strength fasteners are essential.
• Manufactured by ARP, a leader in high-performance fasteners with decades of experience and a reputation for quality.

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 bolt is carefully heat-treated to achieve a tensile strength of 180,000 psi, ensuring that it can withstand high loads and stresses without failure. The black oxide finish not only enhances corrosion resistance but also provides a professional, finished look suitable for visible applications.

The 12-point head design allows for increased contact surface with tools, reducing the risk of stripping and enabling easier installation and removal in confined spaces. The precision machining ensures consistent dimensions and fitment, which is critical for maintaining the integrity of your assembly. Whether used in engine components, chassis, or auxiliary systems, these fasteners are engineered to deliver reliable, long-lasting performance.

Performance & Reliability

Designed for high-stress environments, the ARP 12pt Hardware Kit provides a substantial safety margin over standard hardware, making it suitable for both daily drivers and high-performance builds. Its superior tensile strength helps support the structural integrity of your vehicle or equipment, reducing the risk of fastener failure. The corrosion-resistant finish ensures longevity, even in harsh conditions such as exposure to moisture, salt, or extreme temperatures.

Installation & Fitment

The ARP 12pt Hardware Kit is a bolt-on solution that requires no special tools beyond standard wrenches or sockets. Its precise dimensions and high-quality manufacturing ensure a straightforward installation process. The 12-point head design facilitates easier access and torque application, especially in tight or hard-to-reach areas. No cutting, drilling, or special modifications are necessary, making it an ideal upgrade for both professional mechanics and DIY enthusiasts.

• Easy to install with standard hand tools
• No additional modifications required
• Suitable for a wide range of automotive, marine, and trailer applications

What's Included

• Complete set of high-strength ARP chromoly bolts in the specified thread size
• All necessary hardware components for a secure installation
• Instruction sheet for proper torque specifications and installation tips

Ideal For

• Automotive enthusiasts performing engine or chassis assembly
• Marine applications requiring corrosion-resistant fasteners
• Trailer builders and repair professionals
• High-performance and racing applications where strength and reliability are critical

Emissions Note

This hardware kit is designed for general use and does not carry specific emissions compliance markings. Always verify application compatibility and adhere to local regulations when installing fasteners in emissions-critical systems.