Fixing Kit Review: Is Your Roof Tent Secure?

A roof tent can look firmly attached from the ground while one tired bracket, damaged bolt or poorly matched plate is doing far less work than it should. That is why a proper fixing kit review should focus on the parts you cannot afford to guess about: fit, condition, security and suitability for your exact roof tent and roof bars.

Roof tent mounting hardware is not a generic bag of bolts. It holds a large, expensive item above your vehicle at motorway speeds, over rough tracks and through repeated opening and closing. The right kit makes fitting straightforward and dependable. The wrong one can leave you with movement in the rails, awkward installation, vulnerable standard nuts or hardware that simply does not match your tent base.

What a roof tent fixing kit is there to do

A typical roof tent fixing kit clamps the tent's mounting rails to your vehicle's roof bars or rack crossbars. Depending on the tent design, it may include brackets or plates, bolts, washers, hand wheels, locking nuts and the hardware needed to spread load correctly across the rail.

Its job is not merely to stop the tent falling off. A good setup should hold the tent squarely in position, resist vibration, allow the load to sit where the vehicle and bar manufacturer intend, and make regular inspections realistic. It should also avoid damaging the mounting channels through over-tightening or using fasteners of the wrong size.

For TentBox and compatible roof tent owners, the detail matters. Rail spacing, channel dimensions, bar shape, bolt length and clearance beneath the tent can all affect whether a kit is suitable. A kit that appears similar in a photograph may be unsuitable once you try to slide it into the rail or tighten it around a wider aero bar.

Fixing kit review: the points that actually matter

The best way to assess a fixing kit is to ignore vague claims about being ‘universal’ and start with the connection points. Where does it sit in the tent rail? What bar profile is it designed to clamp around? Can the bolts be tightened securely without fouling the tent shell, rack or vehicle roof?

Compatibility comes before convenience

Check the make and model of your roof tent first, then confirm the rail arrangement and the roof bar or rack system underneath it. TentBox, OEX and other rooftop tents can use different rail dimensions and fixing arrangements across their ranges. Even tents from the same manufacturer may not share identical hardware.

A compatible fixing kit should sit flat, engage correctly in the mounting rail and clamp around the roof bar without bending, packing out or improvising. If you need to force a bracket into position, use random washers to make up a large gap, or cannot fully tighten the hardware, stop there. That is not a practical workaround. It is a sign that the kit does not suit the installation.

There is also a difference between roof bars rated for the tent and bars that merely happen to be on the car. Your tent, roof bars, rack and vehicle roof rating all need to work as one system. A quality fixing kit cannot compensate for bars with an insufficient dynamic load rating or an unsuitable mounting position.

Material and finish are not cosmetic details

Roof tent hardware spends its life exposed to road spray, grit, rain, salt and temperature changes. Stainless steel fasteners and corrosion-resistant plates are worth prioritising, particularly if your vehicle is used year-round or parked outside. Surface rust can make removal difficult and may disguise more serious wear in threads or brackets.

Look for cleanly formed brackets with no sharp edges, cracking coating or distortion around bolt holes. The bolts should thread smoothly, and washers should sit correctly rather than digging into softer materials. A fixing kit does not need to be flashy, but it does need to be built for repeated loading and regular adjustment.

Security should be part of the decision

Standard hand wheels and ordinary nuts make installation accessible, but they can also make a roof tent easier to remove. That matters when the tent is left on the vehicle outside your home, at work, in a car park or at a campsite.

A locking nut set or tamperproof security nuts add a meaningful extra barrier by making it harder for someone to undo the fixings with common tools. They are a deterrent rather than a guarantee, but that is the point of practical roof tent security: make removal slower, more difficult and far less attractive.

The trade-off is simple. Security hardware means you must keep the correct key or tool somewhere safe and accessible. Do not leave it loose in the vehicle where it can disappear just when you need to remove the tent. Keep a dedicated, labelled kit with your roof tent equipment and carry a spare where sensible.

When replacing a fixing kit is the sensible move

Many owners only think about replacement hardware after buying a used roof tent. That is a sensible starting point, but it is not the only reason to change it. Original hardware may be missing, corroded, mismatched or altered by a previous owner. It may also be entirely functional but offer no theft deterrence.

Replace the kit if threads are damaged, bolts are bent, brackets are visibly distorted, hand wheels no longer tighten consistently, or there is corrosion that prevents reliable adjustment. If the tent has moved to a different vehicle with different roof bars, reassess the fit rather than assuming the old setup transfers safely.

It is also worth replacing fixings after an incident that has put unusual stress on the system. A low branch strike, car park height barrier contact, a loose tent that has shifted on the bars, or an attempted theft can all damage hardware in ways that are not obvious at a glance.

Do not treat rattling as normal either. Some road noise is inevitable with any roof-mounted load, but a new clunk, a change in wind noise or visible movement at the mount needs investigating before the next journey. Check the mounting rails, brackets, bar clamps and roof bar feet, not just the most visible nuts.

Fitting advice that prevents common problems

Before fitting, lay out every component and check that it matches the intended arrangement. Clean dirt from the tent rails and roof bars so plates sit properly. Position the tent according to the vehicle and roof bar guidance, keeping it centred and with the crossbars at the recommended spacing.

Tighten the fixings evenly. Work between each side rather than fully tightening one corner first, which can pull the tent out of square or place uneven pressure on the rail. Tight should mean secure and stable, not crushed or forced. If a manufacturer specifies torque settings or a particular fitting sequence, use them.

Once installed, open the tent on level ground and make sure nothing clashes with the shell, ladder, awning or rack. Then take a short local drive and inspect the mounting points again. Recheck after the first longer journey and periodically throughout the season, especially after rough roads or winter travel.

For owners who would rather not second-guess compatibility or fitting technique, a specialist installation is often money well spent. Roof Tent Security offers mobile roof tent fitting nationwide across the UK, which is useful when a new tent, replacement rails or upgraded security hardware all need fitting as one correct setup.

Is a fixing kit upgrade worth it?

If your current kit is complete, correctly fitted and in excellent condition, a replacement may not be urgent. An upgrade becomes worthwhile when it improves compatibility, restores confidence in worn parts or adds anti-theft protection to a high-value tent. For most roof tent owners, the latter is the strongest reason to look beyond basic mounting hardware.

The best fixing kit is the one designed around your tent, your bars and how you use the vehicle. It should tighten cleanly, remain secure over distance, resist the weather and make opportunistic removal much harder. Check it before the road trip, not after hearing the first unexplained rattle on the M6.