Dorman Autograde Hex Lock Nuts with Nylon Ring Grade 2 Thread Size 1/2-20 for Automotive Repair 251-014

Hex lock nuts with nylon ring grade 2 thread size 1/2-20 used to replace worn or missing fasteners in 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

• Hex lock design with integrated nylon ring for vibration resistance
• Grade 2 classification suitable for general automotive applications
• Thread size 1/2-20 inches for precise fitment
• Corrosion tested to withstand harsh underhood environments
• Engineered by professional engineers and quality control specialists in the United States
• Compatible with various OEM part numbers including Papco 109-022 and Rockford NIN-28

Benefits

• Prevents loosening caused by engine vibration and road shock
• Restores factory-level security to critical bolted connections
• Durable construction reduces the risk of repeat repairs
• Direct-fit replacement ensures smoother installation without modification
• Bulk 50-piece pack provides ample supply for multiple repair jobs
• Trusted quality helps maintain vehicle safety and reliability

Application

Ideal for mechanics and DIY enthusiasts needing reliable locking fasteners for suspension, engine, or chassis repairs where standard nuts fail to stay tight.

Fitment Notes

• Universal automotive application for 1/2-20 threaded studs and bolts
• Verify thread pitch and diameter against original hardware before installation
• Compatible with systems requiring Grade 2 strength specifications

Why Choose Dorman?

• Choosing Dorman aftermarket replacement parts is a smart way to restore your vehicle with confidence, thanks to a strong focus on fit, durability, and dependable performance.

What's in the Box

• 50 Piece bulk pack of hex lock nuts

Item Dimensions

• Package measures 4.9 inches x 3.7 inches x 2.2 inches
• Total package weight is 2.2 lbs