26/08/2005
Replacing your car's number plate might seem like a straightforward task, but it requires precision and adherence to specific guidelines to avoid damaging your new plate or falling foul of UK regulations. Whether you're a seasoned mechanic, a car dealership professional, or a keen DIY motorist, understanding the correct procedure for drilling and fitting your number plate is crucial. This comprehensive guide will walk you through every step, from preparing your vehicle to securely mounting your new plate, ensuring a perfect, legally compliant finish every time. Say goodbye to cracked plates and hello to a professional installation.
- Preparing for Your Number Plate Replacement
- Understanding Number Plate Types and Drilling Direction
- Your Step-by-Step Number Plate Drilling Guide
- Securing Your Number Plate to Your Vehicle
- Understanding DVLA Regulations for Number Plate Fixings
- Alternative Methods for Securing Your Number Plate
- Frequently Asked Questions About Number Plate Fixings
Preparing for Your Number Plate Replacement
Before you even think about drilling, the first step is to correctly prepare your vehicle and your new number plate. This initial phase sets the foundation for a smooth and successful installation.
Removing Your Existing Number Plate
The journey begins with the removal of your old number plate. This is typically a simple process: locate and unscrew the holding screws that secure the plate to your vehicle. Once the screws are removed, gently detach the old plate. It's highly recommended to keep your old number plate close by, as it will serve as an invaluable template for marking the drilling points on your new plate. You'll likely find the area beneath the old plate to be quite dirty, perhaps even greasy, from years of exposure. This presents an ideal opportunity for a thorough clean and degrease. A clean surface not only looks better but also ensures any alternative fixing methods, like adhesive pads, will adhere properly.
Important Note: It's worth observing how your old plate was mounted. Older vehicle mounts might not fully comply with current BSAU145e regulations regarding fixings and the registration display. In such instances, or if you simply prefer a cleaner look, high-strength adhesive pads are often recommended as an alternative to screws, as they don't require drilling into the vehicle or the new plate itself, provided the surface is clean and suitable.
Understanding Number Plate Types and Drilling Direction
Not all number plates are created equal, and knowing the type of plate you have is critical for determining the correct drilling direction. Drilling from the wrong side can lead to cracking or delamination, rendering your new plate unusable.
Identifying Your Number Plate Material
To determine your plate type, simply examine it from the side. If your number plate features a 3mm clear top layer, you likely have either a Reflective or a 3-Part plate. These plates are constructed with an acrylic face. Conversely, if you observe a 3mm black ABS layer at the bottom, you are working with a Film number plate. This distinction is paramount for the drilling process.
The Critical Rule of Drilling Direction
- For Film Number Plates: These plates, characterised by their black ABS backing, must always be drilled from the Front. Position your new plate with the registration face up, then align your template on top.
- For Reflective or 3-Part Number Plates: Given their 3mm clear acrylic face, these plates require drilling from the Rear. Place your new plate registration face down, and then position your template accurately on top of the reverse side.
Once you've determined the correct side and aligned your template, use a black marker or a pencil to clearly mark the precise drilling points or crosses onto your new plate. Accuracy here is key to a perfect fit.
Your Step-by-Step Number Plate Drilling Guide
With your template prepared and drilling points marked, it's time to carefully create the holes. This section details the steps to ensure a clean, precise drill without damaging your new number plate.
Creating Your Drilling Template
Before any drilling commences, marking the exact spot for each hole is your first and most crucial step. This is where your old number plate proves invaluable. Lay your old plate over your new one, aligning them perfectly, and then use a pen or pencil to mark the existing screw holes onto the new plate. If your old plate is damaged, or if its holes are not suitable for your new vehicle's mounting points, don't despair. A large piece of paper can serve as an excellent alternative template. Simply hold the paper against your vehicle's mounting points, mark the positions, push your pen or pencil through to create guide holes, and then transfer these marks to your new number plate. Precision at this stage saves a lot of hassle later on.
Masking Your Drilling Points
Even with carefully marked points, a drill bit can sometimes slip, causing unsightly scratches or misaligned holes. To prevent this common mishap, employ a simple yet effective technique: apply a small piece of masking tape directly over each of your marked drilling points. Masking tape is thin enough that you should still be able to see your marks through it. If visibility is an issue, simply re-use your template to mark the drilling points directly onto the masking tape itself. This provides extra grip for the drill bit, preventing it from wandering off target and ensuring a clean start to each hole.
Drilling the Holes Carefully
Now, for the main event. For optimal results and to prevent cracking, always use a 6mm diameter acrylic drill bit. These bits are specifically designed to cut through acrylic and similar plastics cleanly. Position the drill bit precisely over one of your masked drilling points. Begin drilling gently, allowing the bit to do the work rather than forcing it through with excessive pressure. Applying too much force is a common mistake that can lead to cracking or splintering of the plate material. A steady, gentle approach is far more effective.
As a crucial reminder, always ensure you are drilling from the correct side of your number plate, as previously detailed: Film and ABS plates from the front, and Reflective or 3-Part plates from the rear. To further minimise the risk of damage, place a sturdy piece of wood or a cutting mat underneath the number plate during drilling. This provides a solid backing, preventing the plate from flexing and reducing the chance of breakthrough cracks as the drill bit exits the material.
Deburring and Smoothing the Holes
Once all your holes are drilled, carefully remove the masking tape from the plate. You might notice small burrs or rough edges around the newly drilled holes. It's important to remove these. You can gently scrape them off with a craft knife, a small file, or even the edge of a larger drill bit. Smoothing these edges ensures that your screws will sit flush with the number plate's surface, preventing an uneven appearance and reducing strain on the plate itself when tightened. With clean, smooth holes, your number plate is now ready for fitting.
Securing Your Number Plate to Your Vehicle
With the holes perfectly drilled and deburred, the final step is to securely attach your new number plate to your vehicle. This process requires a delicate touch to ensure durability and compliance.
Screwing the Number Plate to Your Vehicle
Carefully position the new number plate in its correct location on your vehicle, aligning the newly drilled holes with the mounting points. Begin by partially attaching screws into both holes. This allows for minor adjustments before full tightening. Once the plate is aligned, carefully tighten your fixings. The key here is to secure the plate firmly without overtightening. Excessive tightening can stress the number plate material, leading to cracks over time, especially around the screw holes. Aim for a snug fit that holds the plate securely in place without any wobbling.
Finally, to give your newly fitted number plate a professional finish, use a soft, clean cloth to gently polish the surface using circular motions. This will remove any fingerprints, dust, or smudges that may have accumulated during the installation process, leaving your plate pristine and clear.
Selecting Compliant Screw Caps
Remember to select coloured screw caps that correspond with the background colour of the number plate where the screw is located. For the front plate, which has a white background, use white screw caps. For the rear plate, which has a yellow background, use yellow screw caps. Black screw caps are generally acceptable on both. It is absolutely crucial not to use cap colours or designs that in any way alter the appearance or legibility of the registration mark itself, as this would be a breach of DVLA regulations.
Understanding DVLA Regulations for Number Plate Fixings
Beyond the practicalities of drilling and fitting, it's paramount to understand the legal framework governing number plate display in the UK. The Driver and Vehicle Licensing Agency (DVLA) enforces strict rules to ensure number plates are always clear and readable.
The Law on Number Plate Obscuration
The DVLA's primary concern is that your number plate characters remain unobstructed and clearly legible at all times. This means you absolutely cannot use screws or any other fixings in a way that obscures, alters, or interferes with the display of the characters on your number plate. This applies whether you're using screws, sticky pads, or brackets. For instance, placing a screw in the middle of a '0' to make it look like an '8', or near any other character to change its appearance, is strictly prohibited and can lead to significant fines or even MOT failure.
Therefore, when using screws or brackets, you must ensure they are positioned either on the far left and right edges of the plate, or in a blank space where they will not affect the display of the registration mark. The number plate should always present its characters clearly and without any visual ambiguity.
Choosing the Right Screws for Your Vehicle
The type and size of screws required for number plates can vary significantly between different car manufacturers and models. While there isn't a universal standard, a common average number plate screw size is approximately 1/4-14-3/4 inches. However, it's vital to research the specific requirements for your vehicle, especially if you're transferring a private number plate to a new car. Using the wrong type or size of screw can not only result in a loose or insecure plate but could also damage the threads in your vehicle's mounting points, leading to potentially costly repairs. Always check the threading of the existing screws or consult your vehicle's manual to ensure compatibility.
Alternative Methods for Securing Your Number Plate
While screws are a traditional and highly secure method, several other options are available for attaching your number plate, each with its own benefits and considerations.
| Method | Pros | Cons | DVLA Compliance |
|---|---|---|---|
| Screws | Highly durable, very secure, traditional method, resistant to theft. | Requires drilling, risk of plate damage if drilled incorrectly, specific screw sizes needed, can be difficult to remove cleanly if overtightened. | Compliant if not obscuring characters; use appropriate coloured caps. |
| Sticky Pads | Easy and quick to apply, no drilling required (preserves plate integrity), clean aesthetic, strong adhesive. | Must align perfectly on first attempt (difficult to reposition), can be tricky to remove cleanly without residue, potentially less theft-resistant than screws. | Generally compliant, as no physical fixings obscure characters. |
| Standard Brackets | Allows for quick and simple plate insertion/removal (useful for show plates), often no drilling into plate required. | Less secure (higher theft risk), primarily used for show plates, may rattle if not fitted snugly. | Can be compliant if not obscuring characters; ensure plate is held firmly. |
| Lipped Brackets | More secure than standard brackets (frames plate fully), still allows for easy plate changes, often no drilling into plate. | Can be bulkier in appearance, specific sizes needed for plate fit. | Highly compliant as they frame the plate without obscuring characters. |
Detailed Look at Alternative Methods:
- Using Sticky Pads: High-strength adhesive pads offer a quick, drill-free solution. They are popular because they eliminate the need to modify either the number plate or the vehicle. The adhesive is incredibly strong, ensuring your plate stays put. However, this strength is also a drawback; once applied, repositioning is extremely difficult without damaging the pad or the plate. Therefore, meticulous alignment before application is crucial.
- Using Screws: As discussed, screws are a time-tested method. They offer excellent durability and security against theft. However, as noted, ensuring you use the correct type and size of screw for your specific vehicle is vital to prevent damage to the mounting threads. Adhering to DVLA rules regarding screw placement is also non-negotiable.
- Using Brackets: Brackets provide a framing solution for your number plate. Standard brackets allow you to slide the plate in and out, which is convenient for "show plates" used at events but less secure for daily driving due to increased theft risk. More secure options like "lipped brackets" frame the plate entirely, preventing easy removal and offering better security while still complying with DVLA regulations by not obscuring the registration mark.
Frequently Asked Questions About Number Plate Fixings
Where is the best place to put screws on a number plate?
The optimal placement for screws is typically within the designated unprinted areas of the number plate, such as the far left and right margins, or within any blank spaces that do not contain or directly border the characters of your registration mark. The primary rule is that no part of the screw or its cap should obscure, alter, or make ambiguous any character on the plate. While alternatives like nylon nuts and bolts exist, they can be more prone to damage. As long as your screws do not infringe upon the legibility or display of the number plate, you will remain compliant with DVLA regulations.
What colour screws can you have on a number plate?
To maintain legal compliance and the clarity of your number plate, it is recommended to use screw caps that blend with the background colour of the plate. This means white screw caps for the front number plate (white background) and yellow screw caps for the rear number plate (yellow background). Black screw caps are also generally acceptable on both plates as they do not typically interfere with legibility. The key is to avoid any colours or designs that could be construed as altering the appearance of the registration characters or making the plate less reflective or clear.
Is it better to stick on your number plates instead of screwing?
Both sticky pads and screws are legitimate methods for securing your number plate, and both can be fully compliant with DVLA regulations if applied correctly. Sticky pads offer a quick, clean, and drill-free installation with strong adhesive properties. However, for enhanced security against theft, screws generally provide a more robust and permanent fixing. The choice often comes down to personal preference for aesthetics and the level of security desired, as long as the chosen method adheres to all legal requirements regarding display and clarity.
Are stick-on number plates illegal?
Yes, dedicated "stick-on" number plates (those made entirely of a flexible, adhesive material rather than a rigid, reflective plate) became illegal in the UK after a law change in 2001. The current regulations (BSAU 145e) require number plates to be made of a strong, reflective material. Stick-on plates, due to their flexible nature and lack of inherent rigidity and reflectivity, do not meet these standards. Using such a plate could lead to failing your MOT, receiving a fine of over £1,000 from the DVLA, and potentially invalidating your insurance.
Can I use black screws to secure my number plate?
Yes, black screws or black screw caps are perfectly acceptable for securing your number plate, regardless of whether it's the front white plate or the rear yellow plate. As with any fixing, the critical factor is that the black screws do not obscure, distort, or in any way affect the clarity, reflectivity, or legibility of the characters on your number plate. As long as they are placed in appropriate, non-character-obscuring positions, black screws are a compliant choice.
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