What Size Screws to Use for License Plate?

Are you tired of the mess that the wrong size screws can create when changing your license plate?

Learn the correct screw size, tips, and tricks here for a hassle-free renewal process.

Stay tuned to discover the ideal size to keep your plates secure and free from any issues!

what size screw for license plate

The standard size for screws used to attach a license plate is typically 1/4 inch in diameter and 3/4 inch in length.

You can use either Phillips head or flat head screws, depending on the type of screwdriver you have available.

When replacing a license plate, ensure that the screws are securely fastened to prevent the plate from coming loose while driving.

Key Points:

  • Standard size for attaching a license plate is 1/4 inch in diameter and 3/4 inch in length
  • Phillips head or flat head screws can be used, depending on available screwdriver type
  • Securely fasten screws when replacing license plate to prevent it from coming loose while driving

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💡 Did You Know?

1. The standard size screw for attaching a license plate is usually M6 (6mm diameter) and about 12-16mm in length.
2. In certain states, using non-standard or decorative screws to attach a license plate may be considered a violation of vehicle registration laws.
3. Some vehicle manufacturers provide specialized license plate screw kits that are designed to match the aesthetics of the vehicle.
4. It is recommended to periodically check the license plate screws for tightness to avoid losing the plate while driving.
5. In some jurisdictions, using zip ties to secure a license plate instead of screws may not be legal and could result in fines or penalties.

1. Locate And Remove Screws

When choosing the right size screw for your license plate, the standard size is usually #14. Depending on your vehicle, the size may vary slightly. It is best to check your car’s manual or the existing screws on your license plate to determine the correct size. Locate the screws holding the plate in place at the corners or along the top and bottom edges. Use a screwdriver to carefully remove the screws without damaging the plate or the vehicle’s exterior.

  • Always choose the appropriate screw size for your license plate
  • Check car manual or existing screws for correct size
  • Locate screws at plate corners or top and bottom edges

    “Always ensure to use the right size screw to avoid any unnecessary damage.”

2. Use Screwdriver And WD-40

  • If the screws on your license plate are rusted or difficult to remove, a handy tip is to use WD-40 or a similar lubricant.
  • Spray the rusted screws with WD-40 and let it sit for a few minutes to penetrate and loosen the rust.
  • Then, use a screwdriver to carefully turn and remove the screws.
  • Be patient and gentle to avoid stripping the screws or causing damage to the license plate holder.
  • WD-40 can be a lifesaver when dealing with stubborn screws, making the removal process much easier and preventing potential frustrations.

3. Gently Pull Plate Off

  • Once the screws are removed, gently pull the license plate off the vehicle. Be cautious not to scratch the car’s paint or cause any damage during this process. If the plate feels stuck, wiggle it slightly to release it from any remaining adhesive or pressure. Take your time and ensure that the plate is completely detached before proceeding to the next step.

4. Clean The Area

After removing the old license plate, it’s essential to clean the area where the new plate will be attached. Use a clean cloth or mild soapy water to wipe down the surface and remove any dirt, dust, or residue left behind by the old plate. This step not only ensures a clean and professional-looking installation of the new plate but also helps prevent any potential damage that dirt and debris can cause over time.

  • Ensure the area is free of any debris
  • Wipe down with a clean cloth or mild soapy water

“Cleaning the area before attaching the new license plate is crucial for a professional and long-lasting installation.”

5. Attach New Plate

  • Once the area is clean and dry, it’s time to attach the new license plate.
  • Line up the screw holes on the plate with the holes on the vehicle’s license plate holder.
  • Insert the screws into the holes and use a screwdriver to secure them in place.
  • Make sure the plate is firmly attached and straight to ensure proper visibility and compliance with regulations.
  • Double-check that the plate is securely fastened before driving to prevent it from falling off and potentially causing a hazard on the road.

6. Return Old Plates To DMV

  • After successfully replacing the license plate with the new one, it’s important to return the old plates to the Department of Motor Vehicles (DMV).
  • Most states require old plates to be surrendered to the DMV to prevent fraudulent use or identification theft.
  • Check with your local DMV for specific instructions on how to return old plates, whether it’s through drop-off locations, mail-in services, or in-person visits.
  • By following this final step, you not only comply with regulations but also contribute to maintaining road safety and security.


What is the standard plate screw size?

The standard plate screw size commonly used for license plates is 1/4-14-3/4. This measurement signifies the screw’s threaded diameter, the number of threads, and its length, making it a widely recognized and utilized choice for securing license plates. Its specifications of 1/4 inch diameter, 14 threads per inch, and a 3/4 inch length make it the go-to option for many vehicles.

What size screws for number plates?

When it comes to selecting the right screws for your license plates, the standard size of 6mm diameter and 18mm length is recommended. These screws are designed to fit most family cars and trucks that utilize nylon or plastic screw holders. However, it’s important to note that they may not be suitable for vehicles with metal threaded holes, so be sure to verify the compatibility with your vehicle before making a purchase. Always double-check the size requirements to ensure a secure and suitable fit for your number plates.

What size hole for license plate mounting?

A hole size of 0.3125 inches in diameter is recommended for mounting license plates, with each hole spaced approximately 3.5 inches horizontally and 2.375 inches vertically from the center of the plate. This specific size and positioning are crucial to maintain a 1/4 margin necessary for producing high-quality license plates that adhere to sheeting requirements and the production process specifications. By following these guidelines, the license plates can be securely mounted without compromising their overall appearance and durability.

What kind of screwdriver do I need for a license plate?

For installing a license plate, you will need either a Phillips or flathead screwdriver depending on the screws used to secure it. Before starting, make sure you have your new license plate and the appropriate screws handy. If you are replacing an old plate, first remove it before attaching the new one with the correct screwdriver.

Sources: 1, 2, 3, 4

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