DBA NAS Nuts

2010–2025 Subaru Impreza / WRX / STI 2.0L Turbo / 2.5L Turbo

Part #: NAS1291C4

Overview

The DBA 0.25-inch NAS Nut is a specialized breakaway nut designed specifically for DBA 5000 Series brake discs. Engineered to provide a secure and reliable fastening solution, these nuts are essential for enthusiasts and professional mechanics who prioritize safety and performance during brake service or upgrades. Whether you're performing routine maintenance or installing high-performance brake components, these NAS nuts ensure a proper fitment and peace of mind.

Designed for use with DBA's high-quality brake rotors, the NAS nuts help maintain the integrity of your braking system by securely holding the rotor in place. Their breakaway feature allows for easy removal and installation, reducing the risk of over-tightening and potential damage to the rotor or wheel assembly. Ideal for both street-driven vehicles and track enthusiasts, these nuts support consistent braking performance and durability.

Key Features

The DBA NAS nuts are crafted with precision and durability in mind, offering several key benefits:

• Manufactured from high-grade A286 stainless steel, providing excellent corrosion resistance and strength for long-lasting performance.
• Designed with a 1/4-inch UNF-28 thread size, ensuring compatibility with DBA 5000 Series brake rotors and many other brake components.
• Breakaway design allows for safe and straightforward removal without damaging the nut or rotor, especially useful during maintenance or rotor swaps.
• Torque specification of 13 NM (9.6 ft/lbs) ensures proper tightening without risking over-torque, which could compromise the rotor or wheel integrity.
• Sold individually, giving you flexibility to replace only the nuts needed without purchasing a full set.
• Precision-machined for a perfect fit, reducing vibration and ensuring consistent braking performance.
• Suitable for both street and racing applications where reliable rotor retention is critical.

Construction & Design

The DBA NAS nuts are constructed from high-quality A286 stainless steel, known for its exceptional strength and corrosion resistance. This material choice ensures that the nuts can withstand harsh environmental conditions, including moisture, road salt, and high temperatures generated during braking. The nuts feature a precise 1/4-inch UNF-28 thread, machined to tight tolerances for a secure fit on DBA 5000 Series rotors and compatible applications.

The breakaway design incorporates a controlled failure point that allows the nut to be safely removed without damaging the threading or surrounding components. This feature simplifies maintenance and reduces the risk of stripping threads or damaging the rotor during removal. The nuts are engineered to be torqued to 13 NM (9.6 ft/lbs), ensuring optimal clamping force while preventing over-tightening that could lead to rotor warping or other issues.

Sold individually, these nuts are ideal for replacing lost or damaged hardware, or for upgrading your brake assembly with high-quality components that meet OEM or performance standards.

Installation & Fitment

Installing the DBA NAS nuts is straightforward and requires no special tools beyond a standard torque wrench. Simply thread the nut onto the rotor hub or wheel stud, ensuring it is properly aligned. Tighten to the specified torque of 13 NM (9.6 ft/lbs) to secure the rotor firmly in place. The breakaway feature ensures that removal is easy and safe during future maintenance or rotor replacement.

No cutting, drilling, or complex procedures are necessary. These nuts are designed to be a direct replacement for OEM or aftermarket hardware, providing a hassle-free upgrade or repair solution for your brake system.

What's Included

• Single DBA NAS Nut with 1/4-inch UNF-28 thread

Ideal For

• Enthusiasts performing brake upgrades or maintenance on Subaru, Mitsubishi, or other compatible vehicles
• Professional mechanics seeking reliable, corrosion-resistant hardware
• Track day participants requiring secure rotor retention during high-performance driving
• Anyone needing a high-quality replacement nut for DBA 5000 Series brake rotors

Emissions Note

This product is designed solely for brake rotor assembly and does not impact vehicle emissions or require any emissions compliance considerations.