Dorman Autograde Hex Lock Nuts with Nylon Ring Grade 2 Thread Size 5/16-18 for Automotive Repair 784-756

Hex lock nuts with nylon ring grade 2 thread size 5/16-18 used to replace worn or missing factory fasteners on automotive assemblies.

Built to meet the manufacturer's design intent for reliable service, these nuts are manufactured using durable materials and corrosion tested to ensure required strength and longevity.

Key Features

• Grade 2 hex lock nut construction with integrated nylon ring
• Thread size 5/16-18 inch with height of 11/32 inch
• Corrosion tested for enhanced durability in harsh environments
• Engineered by professional engineers and quality control specialists in the United States
• Direct-fit replacement designed to match OE form and function

Benefits

• Prevents loosening caused by vibration during vehicle operation
• Restores secure fastening to critical automotive components
• Reduces risk of repeat repairs through validated testing
• Ensures smoother installation with precise thread matching
• Provides long-lasting performance for daily driving demands

Application

Ideal for mechanics and DIY enthusiasts needing reliable replacement fasteners for general automotive repair, suspension work, or engine bay maintenance where secure locking is essential.

Fitment Notes

• Universal application for vehicles requiring 5/16-18 Grade 2 hex lock nuts
• Verify thread size and grade requirements before installation

Why Choose Dorman - Autograde?

• Dorman parts are engineered as direct-fit replacements designed to match OE form, fit, and function
• Built with quality materials and validated through testing to stand up to daily driving demands
• Backed by a strong focus on fit, durability, and dependable performance

What's in the Box

• 3 Piece Set of Hex Lock Nuts

Item Dimensions

• Package: 4.0in x 2.7in x 1.0in
• Weight: 0.1lbs