RoadPro RPKN-5P 5mm mounting screws for CB, radar, and stereo brackets
Product description
What this is for (and why it exists)
RoadPro’s RPKN-5P mounting screws are made for installing accessories on brackets—specifically CB, radar, or stereo setups. The idea is straightforward: you get a screw assembly paired with a plastic top and a metal screw, meant to secure hardware where you need a reliable hold without turning the job into a DIY engineering project.
On paper, this is the kind of small part that saves you time. In real installs, missing or worn screws can stall the whole setup. If you’re trying to get a CB unit, a radar device, or an in-car stereo mount back into working order, having the right mounting screw style matters more than most people expect.
The essentials
These are 5mm mounting screws (the “5mm” part is the headline). The kit is described as having: - a plastic top, - a metal screw, - plastic knobs/head pieces built around a 5mm mounting approach.

That combination suggests a practical use case: hand-friendly hardware that’s still anchored by a metal screw. It’s not trying to be fancy, it’s trying to be easy to handle during installation and adjustments.
Worth noting: because the only explicit detail provided is “5mm,” you’ll want to be sure your existing bracket or mount is designed around a compatible 5mm setup. If your hardware uses a different size, this may be the wrong piece even if it “looks close.”
Where it shines during installation


If you’ve ever done a vehicle accessory install, you know the pain points: tight spaces, small hardware, and the frustration of realizing a mounting screw doesn’t match what your bracket expects.
These ROADPRO mounting screws fit into that everyday reality. The plastic top and plastic head/knob design implies they’re intended to be easier to manage than all-metal-only hardware—helpful when you’re aligning a bracket, re-mounting a unit, or swapping parts after removing something for maintenance.

A concrete example: if your CB or radar setup loosens over time and you’re re-securing the bracket, you can replace worn or missing mounting screws so the unit sits firmly again. It won’t fix a bad bracket, but it can address the “one missing screw, everything delayed” problem.
What to check before you buy
Before assuming these will work, don’t skip the basics:
- Mounting size compatibility: the product is described as 5mm. Confirm your bracket or mount uses the same size.
- Your application type: the listing calls out CB, radar, or stereo bracket use. If your mounting method is for something else entirely, compatibility may be unclear.
- Condition of your existing setup: if your bracket is bent, cracked, or otherwise damaged, new screws might not deliver the result you want.
This is one of those purchases where matching the mounting approach matters more than brand reputation or marketing.

Who it’s for (and who should skip it)


It makes sense if you:
- need replacement mounting screws for a CB, radar, or stereo bracket setup that uses a 5mm mounting style,
- want hardware that pairs a metal screw with a plastic top/knob approach,
- are looking for a practical fix when a small part is preventing a whole installation or reinstallation.
It’s not the best fit if you:
- are unsure whether your mount is actually built around 5mm,
- need a complete mounting system (based on the description, this focuses on the screws/hardware pieces rather than a full bracket kit),
- expect compatibility with every possible mounting layout—without confirmation, you could end up with parts that don’t match.

Key takeaways
This RoadPro RPKN-5P is a small but important part for getting CB, radar, or stereo bracket installations sorted with 5mm mounting hardware. The metal screw + plastic top/knob design reads as a convenience-focused approach for vehicle accessory work.
However, it’s not a “universal fix.” If your bracket doesn’t call for a 5mm mounting style, you may have to look for a different size or mounting configuration.
Should you buy it?


Buy it when you already have a CB, radar, or stereo bracket setup and you specifically need 5mm mounting screws that match the described hardware style. It’s a sensible replacement-type purchase that helps you finish or restore an install without overcomplicating things.

Skip it if you don’t know your mount’s sizing requirements or if you’re expecting this to replace an entire mounting bracket kit. In that case, it may be cheaper and faster to confirm the correct mounting size and hardware type first.
Mini FAQ
How do I know if these 5mm mounting screws will fit my setup?
The listing emphasizes a 5mm mounting approach. Check your bracket or existing hardware for a compatible 5mm mounting size before ordering.
Are these screws meant for CB, radar, and stereo mounts?

Yes, the base description specifically mentions usage on CB, radar, or stereo brackets.
What’s the benefit of the plastic top with a metal screw?
Based on the materials described, it should make the hardware easier to handle during installation while still relying on the metal screw for the actual fastening.
Is this a complete mounting kit?
The information provided focuses on mounting screws and the described plastic/metal hardware components, not a full bracket system. If you need a full mount, you’ll want to verify what’s included for your specific installation needs.
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