Dorman 611-129 Wheel Lug Nut

Dorman 611-129 Wheel Lug Nut Overview

Dorman 611-129 wheel lug nuts are built from carbon steel and tested to automotive industry standards for strength, longevity, and safety. This metric lug nut uses a 14 x 1.5 fine thread, a 60-degree conical seat, and a black flattop capped design for a direct replacement on select Chevrolet C1500 and GMC C1500 applications.

For buyers searching for a black M14-1.50 wheel lug nut for 1988-1991 Chevrolet C1500 or 1988-1991 GMC C1500, this part number provides the key dimensions and seat style needed for proper wheel-to-lug engagement. Dorman 611-129 is also referenced under 9947N and 9591465 for the same application.

Key Features

• Carbon steel construction for strength and durability
• Black finish for a clean, OE-style appearance
• Metric thread size: M14 x 1.5 fine thread
• 60-degree conical seat for compatible wheel mating surfaces
• 22 mm hex size for standard service tools
• Right-hand thread direction
• Flattop capped nut design
• Direct-fit hardware for select Chevrolet and GMC truck applications

Detailed Product Description

Dorman 611-129 is a steel wheel lug nut engineered for vehicles that require a metric M14-1.50 thread, clockwise thread direction, and a 60-degree conical seat. The black capped exterior helps maintain a uniform wheel appearance while the carbon steel body is built to meet demanding automotive standards for structural integrity and service life. This part is a practical choice for owners replacing worn, damaged, or mismatched lug nuts on 1988-1991 Chevrolet C1500 and 1988-1991 GMC C1500 trucks.

When searching for a wheel lug nut for Chevrolet C1500 or GMC C1500 models, confirm the wheel mating surface and thread specifications before installation. Dorman 611-129 is designed around the listed fitment and dimensions, making it a focused replacement for applications that call for a black M14-1.50 conical-seat lug nut.

This part cross-references 9947N and 9591465 for the same application.

What This Part Helps Address

• Damaged or rounded lug nut hex surfaces
• Corrosion or finish wear on existing wheel hardware
• Incorrect thread pitch or seat style during wheel service
• Loose or inconsistent wheel fastening caused by worn hardware
• Replacement needs for black capped lug nuts on select trucks

Installation Notes and Tips

• Verify the wheel uses a 60-degree conical seat before installation.
• Confirm M14 x 1.5 right-hand thread specification matches the vehicle hub.
• Use the correct 22 mm socket to avoid damaging the hex.
• Inspect wheel studs and wheel seating surfaces for wear or damage before tightening.
• Follow the vehicle manufacturer’s torque specification during installation.

Quality Assurance

Dorman manufactures this lug nut from carbon steel and tests it to demanding automotive industry standards for strength, longevity, and safety. That focus on material quality and dimensional accuracy supports dependable service on the specified Chevrolet C1500 and GMC C1500 applications.