ARP 12-Point Blue Anodized Manifold Bolt 7/16‑12 Thread 0.44in

Description

Product Overview

ARP’s 12‑point bolt is a purpose‑built fastener designed for high‑performance automotive applications where safety and reliability are paramount. Constructed from aircraft‑grade aluminum that has been blue anodized, the bolt offers exceptional corrosion resistance while maintaining a lightweight profile. The 7/16‑12 thread size and 0.44‑inch compatible groove diameter provide a precise fit for ARP‑specified manifolds and blowers, ensuring a secure connection that can withstand extreme pressure spikes.

The bolt’s round head, finished in a distinctive blue anodized coating, not only adds visual distinction but also reduces the likelihood of galling during installation. Each bolt is supplied with aerospace‑quality 12‑point steel nuts that match the bolt’s strength, as well as heavy‑duty parallel‑ground steel washers that distribute load evenly across the mating surface. This combination of materials and engineering details creates a fastening system that is both robust and easy to service.

Designed to allow separation of the manifold and blower during unexpected blower explosions, the bolt acts as a sacrificial link that protects the engine block from catastrophic damage. By directing the force of a failure away from critical components, it helps avoid costly repairs and downtime. The bolt’s weight of 8.8 ounces makes it easy to handle during installation, while its compact size fits within tight engine bays without compromising performance.

Usage

This bolt is ideal for high‑performance street cars, race‑prepared vehicles, and any application where forced induction systems are employed. It excels in environments where the blower may be subjected to sudden pressure spikes, such as during aggressive throttle inputs, turbo lag compensation, or when operating at elevated boost levels. The bolt’s design ensures that, in the event of a failure, the manifold can separate cleanly from the blower, preserving the integrity of the engine’s internal components.

Installation is straightforward for experienced technicians. The bolt should be torqued to ARP‑specified values using a calibrated torque wrench to achieve optimal clamping force. The included steel nuts and washers simplify the assembly process, reducing the need for additional hardware. Regular inspection during routine maintenance can verify that the bolt remains secure and free of corrosion, extending the service life of the entire forced‑induction system.

Because the bolt is compatible with a range of ARP‑branded manifolds and blowers, it serves as a universal solution for many performance builds. Whether you are upgrading a classic muscle car, a modern sports sedan, or a track‑day race car, this bolt provides the confidence that your engine’s forced‑induction components are securely fastened while still offering a fail‑safe mechanism.

Why Choose Us

ARP has a long history of engineering high‑quality fasteners for the automotive and aerospace industries. Each bolt undergoes rigorous testing to meet or exceed OEM specifications, ensuring that you receive a product that performs reliably under the most demanding conditions. Our commitment to precision machining and material selection means that every bolt delivers consistent torque characteristics and long‑term durability.

When you purchase this bolt, you are not only getting a component but also the backing of a brand that prioritizes safety and performance. ARP provides detailed installation instructions, torque specifications, and technical support to help you achieve the best results. Our after‑sales service includes a responsive customer support team ready to answer any questions about fitment, installation, or performance tuning.

In addition to the bolt itself, the package includes aerospace‑grade steel nuts and parallel‑ground washers, eliminating the need to source additional hardware. This comprehensive approach reduces the risk of mismatched components and streamlines the installation process, saving you time and effort on the shop floor.

Key Features

• Blue anodized aluminum construction provides superior corrosion resistance and a lightweight profile.
• 12‑point head design ensures easy, torque‑accurate installation with standard tools.
• Engineered to separate manifold and blower during explosions, protecting engine components.
• Includes aerospace‑grade steel nuts and heavy‑duty parallel‑ground washers for a complete fastening solution.
• Backed by ARP’s dedicated customer support and technical assistance for peace of mind.

FAQ

What makes the blue anodized finish important?

The blue anodized coating creates a hard, protective layer on the aluminum surface that resists corrosion, wear, and galling. This finish also helps identify the bolt quickly during installation and maintenance.

Can this bolt be used on non‑ARP manifolds?

While the bolt is optimized for ARP‑specified manifolds, its 7/16‑12 thread and 0.44‑inch groove diameter are common standards. Verify the thread pitch and groove size of your manifold before installation to ensure proper fit.

How do I torque the bolt correctly?

Follow ARP’s torque specifications, typically found in the product documentation or on the ARP website. Use a calibrated torque wrench and tighten the bolt in a criss‑cross pattern if multiple bolts are used to achieve even clamping force.

What is the purpose of the included steel nuts and washers?

The steel nuts match the bolt’s strength and thread profile, providing a secure lock‑up. The parallel‑ground washers distribute load evenly, preventing surface deformation and enhancing the overall durability of the joint.

Is there a warranty on this product?

Yes, ARP offers a limited warranty that covers manufacturing defects. For detailed warranty terms, refer to the ARP warranty policy or contact our customer support team.