ARP 12pt Hardware Kit

3/8˝-16 SAE Bolt Kit for Automotive, Marine, and Trailer Applications

Part #: 642-1750

Overview

The ARP 12pt Hardware Kit is a premium-quality fastener solution designed for automotive enthusiasts, builders, and professionals who demand strength, durability, and reliability. Crafted from high-grade materials, this bolt kit provides a robust fastening option for a wide range of applications, including engine components, chassis modifications, marine setups, and trailer assemblies. Whether you're upgrading your vehicle or working on custom projects, these ARP chromoly bolts ensure a secure fit and long-lasting performance.

Ideal for those who seek to enhance the safety margins of their assemblies, this hardware kit offers peace of mind with its superior tensile strength and heat-treated construction. The black oxide finish not only provides corrosion resistance but also adds a sleek, professional appearance to your build. With ARP's reputation for quality and precision engineering, this bolt kit is a reliable choice for both daily drivers and high-performance applications.

Key Features

Designed with performance and durability in mind, the ARP 12pt Hardware Kit offers several key features that make it a standout choice for your projects:

• High-Strength Material: Made from ARP's proprietary 8740 chromoly steel, these bolts boast a tensile strength of 180,000 psi, providing a significant safety margin over standard Grade 8 hardware.
• Heat-Treated for Reliability: The fasteners undergo a specialized heat-treatment process to optimize strength, toughness, and fatigue resistance, ensuring they withstand demanding conditions.
• Corrosion-Resistant Finish: The black oxide coating offers excellent corrosion resistance, making these bolts suitable for marine environments, outdoor applications, and high-humidity conditions.
• Versatile Thread Size: The 3/8˝-16 thread size is a common standard, compatible with a wide range of automotive and industrial components.
• Multiple Head Styles: Available with various head designs to suit different installation needs and aesthetic preferences.
• Precision Machined: Ensures accurate thread engagement and proper fitment, reducing the risk of stripping or failure.
• Wide Range of Options: The kit includes a variety of fastener types, sizes, and head styles to accommodate diverse project requirements.
• Trusted Brand: ARP is renowned for producing high-quality, race-proven fasteners trusted by professional builders and enthusiasts worldwide.

Construction & Design

The ARP 12pt Hardware Kit features meticulously engineered fasteners crafted from ARP's exclusive 8740 chromoly steel, a material known for its exceptional strength-to-weight ratio and toughness. Each bolt is precision-machined to exact specifications, ensuring consistent quality and fitment. The heat-treatment process enhances the mechanical properties, providing a substantial safety margin for critical applications.

The black oxide finish not only enhances corrosion resistance but also minimizes glare and provides a professional appearance. The 12-point (12pt) head design allows for better torque application and easier installation in tight spaces, reducing the risk of stripping or rounding off the fastener head. This design also facilitates easier access with standard tools, making installation and removal straightforward.

Performance & Use

While primarily designed for general fastening needs, these ARP chromoly bolts excel in demanding environments where strength and reliability are paramount. They are suitable for engine assembly, suspension components, chassis modifications, marine applications, and trailer hardware. Their high tensile strength ensures they can support increased loads and stresses, providing added safety and peace of mind.

Installation & Fitment

The ARP 12pt Hardware Kit is a bolt-on solution that requires no special tools beyond standard wrenches or sockets. The precise threading and machined heads ensure proper engagement and torque application. No additional modifications, cutting, or drilling are necessary for most applications, making it an easy upgrade or replacement part for your vehicle or project.

• Ensure the thread size matches your application (3/8˝-16).
• Use appropriate torque specifications to avoid over-tightening.
• Apply anti-seize compound if recommended for your environment to facilitate future removal.

What's Included

• Complete set of high-strength ARP chromoly bolts in various sizes and head styles
• All necessary hardware for installation
• Instruction sheet for proper torque and installation guidelines

Ideal For

• Automotive enthusiasts and builders seeking reliable fasteners for engine, chassis, or suspension components
• Marine applications requiring corrosion-resistant hardware
• Trailer and industrial assembly projects
• Professionals and DIYers demanding high safety margins and durability

Emissions Note

This hardware kit is intended for use in non-emissions-critical applications. Always verify compatibility with your specific vehicle or project requirements. ARP fasteners are designed for performance and safety but are not certified for emissions compliance or street use in all jurisdictions.