Dorman Prevailing Torque Lock Nut Class

Dorman Prevailing Torque Lock Nuts are steel locking nuts, also called prevailing torque nuts or self-locking nuts. They help fasteners stay tight in automotive, truck and general-purpose repairs. A prevailing torque design resists loosening from vibration and movement, which makes these nuts a good choice where a standard nut might back off over time.

Key Features:

• Durable materials: Made from steel and built to specific thread tolerance standards.
• Corrosion tested: Dorman salt spray tests the hardware to confirm corrosion resistance and long service life.
• Locking design: The prevailing torque feature keeps the nut from vibrating loose once it is installed.
• Multipurpose usefulness: Works in many applications, from automotive repairs to home projects.
• Quality backing: Dorman engineers and quality control specialists support the product line.

Dorman offers this line in both metric and SAE options. Choose the thread size and grade or class that matches your original fastener. These nuts are a dependable replacement for worn or damaged locking hardware.