Metal washers

Small component, big difference in assembly

The metal washers Slot.it SICH122 are specifically designed for M2 screws and come in a convenient pack of 20 units. They are the type of part that seems minor until their absence — or their replacement with a low-quality washer — causes play, imbalances, or uneven tightening at critical points of the chassis.

Function and performance

A well-chosen washer serves several simultaneous functions: it distributes the load of the screw over a larger surface, protects the chassis material from the screw head, and helps achieve uniform tightening. In slot preparation, where adjustments are measured in tenths and repeatability is key, having washers of proven quality makes the difference between precise tuning and an assembly that gives way under track vibrations.

Compatibility

Designed for M2 screws, the most common size in 1/32 and 1/24 scale slot chassis and mounts. They are compatible with M2 screws from Slot.it's own catalogue, although due to their standard measurements, they also fit equivalent applications from other brands that use the same thread pitch.

Assembly and preparation

Their use is straightforward, but it is advisable to keep some details in mind:

• Place the washer between the screw head and the surface of the chassis or part to be secured.
• In high-vibration points — such as the motor mount or the base — using a washer reduces the likelihood of the screw loosening with use.
• The pack of 20 units ensures you always have them on hand for multiple assemblies or inspections without running out.

Common mistakes

The most common mistake is to forgo the washer to "save time" in a quick assembly. Over time, the screw ends up marking and weakening the support surface, especially in plastic or resin chassis. Another common error is mixing washers of different thicknesses at symmetrical points of the chassis, which can introduce slight differences in height or tilt that affect track performance.

Frequently asked questions

What screws are these washers designed for?

They are designed for M2 screws, the most widespread standard in the preparation of 1/32 and 1/24 scale slot cars.

How many units does the pack include?

The SICH122 pack includes 20 metal washers.

Are they compatible with other brands besides Slot.it?

As they are a standard size (M2), they can be used with M2 screws from any brand that uses that same thread pitch.

In which points of the car is it most advisable to use them?

They are especially useful in securing the motor, the mount, and any point subjected to continuous vibration, where they help maintain the tightening and protect the support surface.

Slot.it SICH122 metal washers for M2 screws, pack of 20 units. Essential hardware for slot car preparation and chassis assembly in 1/32 and 1/24 scale. Compatible with M2 screws from Slot.it and other manufacturers. A must-have spare part for any serious slot car enthusiast or club racer looking for reliable, consistent builds.