If you own a GMC Sierra pickup truck, knowing the proper lug nut size and torque specifications is important for changing a tire or doing any wheel maintenance. Choosing the right socket size and torque wrench setting helps ensure the lug nuts are tightened properly for safe operation. In this article, we’ll look at the lug nut sizes for different Sierra models and years, the recommended torque specs, and reasons why aftermarket lug nuts like BONOSS can be a good option.

What is the Lug Nut Size on a GMC Sierra?

The lug nut size on most GMC Sierra models from 1988 up to current 2023 models is M14 x 1.5. This refers to a 14mm diameter lug nut with 1.5mm between the threads. Always check your owner’s manual if you are unsure.

The socket size needed to remove GMC Sierra lug nuts is typically 21mm or 22mm. Again, confirm the size by testing on one lug nut before removing the others. Many socket sets include both 21mm and 22mm sockets to be prepared for different applications.

What is the Lug Nut Torque for a GMC Sierra?

Along with using the proper socket size, it’s critical to torque the lug nuts to the manufacturer’s specifications when re-installing wheels. This ensures the wheels are securely fastened for safety.

The recommended torque for M14 x 1.5 GMC Sierra lug nuts is:

  • 140 ft-lbs for Sierra 1500 models

Always use a calibrated torque wrench to achieve accurate torque settings. Do not rely on tightening by hand or with an impact wrench.

What Size are the Lug Nuts on a GMC Sierra?

Why Choose Aftermarket Lug Nuts Like BONOSS?

Many GMC Sierra owners choose to upgrade to aftermarket lug nuts rather than stick with the factory nuts. Benefits of brands like BONOSS include.

  • Enhanced durability: BONOSS lug nuts are made of stronger forged 50BV30 steel.
  • Increased security: They use 4 special locks which require a unique key tool for installation. This deters wheel theft.
  • Custom styling: Upgraded lug nuts can feature black finishes to accessorize your wheels.
  • Improved safety: Quality aftermarket lug nuts maintain proper torque values. Proper torque = safer wheels.

BONOSS in particular is a top choice for GMC Sierra lug nut upgrades. Their nuts meet strict manufacturing standards for optimal safety and durability. The company offers all the finish options above, patented lock styles, and a precision fit with Sierra wheels both OEM and aftermarket. For peace of mind when upgrading your Sierra, BONOSS lug nuts are a smart buy.

In summary, most GMC Sierra models use a 14mm, 1.5 pitch lug nut tightened to 140-190 ft-lbs depending on the model. Always check your torque specifications and use a quality torque wrench. And consider upgrading to durable aftermarket lug nuts like BONOSS to enhance the safety and style of your GMC Sierra.