Allen M2 x 2 Superlight Spacer

Small in size, key in assembly: the SRC superlight M2 x 2 Allen grub screw

In the preparation of a competition slot car, fastening details matter as much as the larger components. The SRC superlight M2 x 2 Allen grub screw (ref. SRCRM1008) embodies this philosophy: a fastening piece designed to securely hold while minimising the added weight to the assembly.

Technical specifications

• Type: Allen grub screw (headless screw, driven by Allen key)
• Metric: M2 (2 mm diameter)
• Length: 2 mm
• Required Allen key: 0.9 mm
• Design concept: Superlight, aimed at reducing mass in assembly
• Reference: SRCRM1008 (SRC)

Function and performance

A grub screw is a headless screw that, once tightened, is recessed into the piece it secures. This makes it the ideal solution for adjusting elements where a conventional screw head would interfere with movement, available space, or simply add unnecessary weight. In competition slot configurations, where mass balance and weight reduction in each component are pursued, this type of superlight M2 x 2 grub screw fits perfectly.

Its reduced length of 2 mm makes it especially useful in applications where the tightening travel is limited, such as securing crowns, pinions, axles, or small chassis subassemblies that require a firm anchoring point without compromising the geometry of the assembly.

Assembly and preparation

For proper installation, a 0.9 mm Allen key is required. It is essential to have the correct key before proceeding with the assembly: attempting to tighten or loosen a grub screw of this scale with an incorrect tool can damage the internal hex and render the piece unusable. We recommend working with precision Allen key sets specifically designed for modelling or slot preparation.

When tightening, apply the correct torque: being a superlight piece, the material is optimised to reduce mass, so excessive tightening could compromise the integrity of the threading. A firm but controlled adjustment is always sufficient.

Compatibilities and applications

This grub screw is for general use in M2 applications with a length of 2 mm. Its most common uses in the slot world include:

• Securing crowns or pinions on drive axles
• Holding small subassemblies in competition chassis
• Replacing worn or damaged grub screws in existing setups
• Assemblies where minimising weight is a priority

Frequently asked questions

What is the difference between a grub screw and a conventional screw?

A grub screw is a headless screw: its body is completely cylindrical and threaded, and it is driven from the inside using an Allen key. This allows it to be fully recessed into the piece, without protruding, which is particularly useful in tight spaces or when any mechanical interference needs to be eliminated.

What Allen key do I need for this grub screw?

You need a 0.9 mm Allen key. This is a common precision size in modelling and slot preparation key sets. Make sure to use the exact size to avoid damaging the internal hex.

Is it suitable for use on the competition track?

Yes. Its superlight design makes it particularly suitable for competition assemblies where weight control is a relevant factor. Its fastening function is identical to that of a conventional grub screw, with the advantage of reduced weight.

How many units are included in the pack?

The available information does not specify the exact number of units per package. Please check the updated product sheet in-store or contact our team to confirm before placing your order.

Can I use it with brands other than SRC?

As it is a standard M2 x 2 mm piece, it can be used in any application that requires that measurement, regardless of the brand of the chassis or component. Compatibility depends solely on the housing being M2 with a minimum travel of 2 mm.

The SRC SRCRM1008 is an M2x2 mm Allen grub screw designed for slot car competition builds where weight reduction is a priority. Requiring a 0.9 mm Allen key, this superlight grub screw is ideal for securing crowns, pinions, and small chassis components with precision. A must-have spare for slot car enthusiasts focused on performance tuning and competitive slot racing setups.