Flat cross screw M2.4 special for guide flag

The small detail that makes a difference in adjusting your Thunder Slot guide

In the assembly and tuning of a competition slot car, the technical screws rarely receive the attention they deserve. However, a poorly chosen screw at the guide flag fixing point can lead to play, vibrations, and erratic behaviour during a race. This flat head cross screw M2.4 from Thunder Slot is designed to prevent exactly that.

Function and performance

Its flush flat head is the most important feature of this component: being flush with the surface of the guide flag, it eliminates any friction points with the chassis or the braids, and contributes to allowing the guide to pivot freely. The cross drive makes tightening and loosening easy with a standard screwdriver, which is particularly appreciated when a quick adjustment is needed on the preparation bench or between heats.

The M2.4 metric is specific for this type of application in slot guides: it is not a general-purpose screw, but a part sized to fit precisely in the guide flag housing, respecting the original geometry of the assembly.

Compatibility and installation

As an original spare part from Thunder Slot, it is designed for the chassis and guide assemblies of this brand. If you are replacing worn or lost parts during maintenance, this screw ensures the correct fit without the need for modifications.

• Metric: M2.4 (special for guides)
• Head type: Flush flat
• Tightening drive: Cross (Phillips)
• Application: Fixing the guide flag on Thunder Slot models
• Reference: TH-CA00309

Common mistakes when replacing this screw

The most common mistake is trying to replace it with a standard M2 or M2.5 screw from a hardware store. The difference of tenths of a millimetre in the M2.4 metric can cause the fixing to be loose — risking losing the guide on track — or forcing the housing and damaging the flag. Always use the correct spare part to preserve the integrity of the assembly.

Another point to watch: tighten to the correct torque. The guide flag needs some freedom of movement to pivot correctly; excessive tightening blocks it and ruins the car's behaviour in corners.

Frequently asked questions

Is this screw compatible with other brands of guides?

It is an original spare part from Thunder Slot sized for its own guide assemblies. Before using it on guides from other brands, ensure that the thread pitch and housing diameter exactly match M2.4.

What screwdriver do I need to tighten it?

A cross head (Phillips) screwdriver of the appropriate size for fine modelling screws, usually PH0 or PH00. Use a tip in good condition to avoid damaging the drive.

How often should I check this screw?

It is advisable to inspect it before each race session. Vibration and impacts can progressively loosen it. A quick check on the preparation bench can prevent surprises on track.

Is it sold in a pack or as a single unit?

According to the available information, this item corresponds to reference TH-CA00309. Check the purchase details to confirm the exact quantity included.

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