10 M2 x 3mm Allen Screws.

The PKS M2 x 3mm Allen grub screws are that small part that makes the difference between a car that finishes the race and one that stops at the first corner.

A poorly tightened or worn set screw causes the wheel to slip on the axle, loss of transmission from the crown gear, or, at the worst moment, the immobilisation of the car during the race. With this pack of 10 units PKS203010, you will always have a spare on hand to act quickly in the pits.

Function and performance

The Allen grub screws act as radial fastening elements: they screw into the body of the wheel, crown gear, or pinion and press directly against the axle, transferring torque without the need for a keyway. The metric M2 and length of 3 mm correspond to the most common fittings in 1/32 scale accessories, making them a regularly consumed item in any preparation toolkit.

The Allen head (internal hexagonal) allows for controlled and precise tightening with the appropriate wrench, without the risk of deforming the hexagon if the correct tool is used. This is especially important when the same screw is going to be loosened and retightened several times during a tuning session or gear ratio change.

Compatibility and assembly

The M2 thread is standard and is present in the vast majority of wheels, crown gears, and pinions on the 1/32 scale market. Always check that the threaded fitting is clean of grease or debris before tightening, as any impurity can cause a false tightening. Apply a small drop of low-strength thread locker if the screw tends to loosen due to vibrations, thus facilitating its later removal without damaging the component's thread.

Assembly and preparation in the pits

• Always use an Allen wrench of the exact size to avoid rounding the hexagon.
• Do not apply excessive torque: the M2 thread is fine and can easily seize.
• Check the condition of the screw after each intensive adjustment session; if the hexagon starts to show wear, replace it.
• Always keep several spares in the toolkit: they are commonly consumed parts in the preparation of competition slot cars.

Common mistakes

The most common mistake is reusing screws that already show slight rounding of the internal hexagon. At that point, the wrench does not transmit torque well, and the risk of damaging the component's fitting is high. The low cost per unit makes preventive replacement always the most sensible decision.

Another common mistake is confusing the length: a screw that is too long can interfere with the axle or deform it, while one that is too short does not generate the necessary pressure. Always check that the length of 3 mm is as specified by the manufacturer of the accessory you are going to fix.

Frequently asked questions

What type of parts are these M2 x 3mm screws used for?

Mainly for fixing wheels, crown gears, and pinions to the rear or front axle in 1/32 scale slot cars. They screw into the threaded fitting of the accessory itself and press against the axle to prevent any axial or rotational movement.

How many units are included in the pack?

The PKS203010 pack includes 10 M2 x 3mm Allen grub screws.

What Allen wrench do I need to tighten these screws?

You need an Allen wrench that corresponds to the internal hexagon size of the M2 screw. Check the specifications of your slot Allen wrench set; it is usually a hexagon of 0.9 mm or 1 mm for M2 metric screws. Always use the exact size to avoid rounding the fitting.

Are they compatible with all brands on the 1/32 market?

The M2 thread is a widely adopted standard in the industry, so these screws are compatible with the vast majority of wheels, crown gears, and pinions in 1/32 scale. Always check the fitting of the specific component before using them.

How often should I replace them?

It depends on usage. In regular competition, inspect the internal hexagon after several adjustment sessions. As soon as you notice that the wrench does not fit perfectly, replace it. Since they come in a pack of 10 units, you will always have a spare available.

Can I use thread locker with these screws?

Yes, but always use low-strength thread locker to be able to remove them without damaging the component's thread. Avoid high-strength lockers, as they may make removal impossible without damaging the fitting.

PKS203010 Allen grub screws M2 x 3mm for 1/32 slot car preparation. Set screw pack for fixing wheels, crown gears and pinions on standard axles. PKS racing hardware, metric M2 slot car spare parts, allen stud set screws for slot car assembly and tuning.