Cone Head Screws 4.8mm M2x5mm

Special Suspension Screws: The Precision That Makes a Difference on Track

In the preparation of a competition slot car, the small details are what separate an amateur assembly from a professional one. This conical head screw set from Scaleauto (ref. SC-5145A) is specifically designed for suspension applications, where the geometry of the head, weight, and thread tolerance have a direct impact on the car's behaviour.

Technical Specifications

• Material: Aluminium
• Head Type: Conical, diameter 4.8 mm
• Metric: M2
• Shank Diameter: ø 1.70 mm
• Thread Length: 3.5 mm
• Shank Length: 1.5 mm
• Total Length: 5 mm
• Pack Content: 6 units
• Reference: SC-5145A

Function and Performance

The conical head allows the screw to be flush or semi-flush with the mounting surface, preventing mechanical interference and reducing the overall height of the suspension assembly. In systems where the space between components is critical, this head profile minimises unwanted friction and contributes to a cleaner and more progressive suspension movement.

Aluminium, compared to conventional steel, provides a noticeable weight reduction in the assembly. In competition cars where mass balance is finely tuned, replacing standard screws with aluminium parts in suspension areas can have a positive effect on weight distribution and dynamic response.

Assembly and Preparation

As it is metric 2, it is essential to use the appropriate tools to avoid damaging the head or the thread. A screwdriver or Allen key calibrated for M2 ensures the correct torque without compromising the integrity of the aluminium screw. It is recommended not to overtighten, as aluminium, being softer than steel, can suffer deformation in the thread if the recommended torque is exceeded.

For assemblies in plastic or resin parts, the conical head helps to better distribute the clamping load, reducing the risk of marking or fracturing the chassis material or suspension base.

Ideal for…

This pack fits perfectly in the workspace of those preparing chassis with suspension for Sport rail (Scaleauto, Slot.it) and seeking a level of finish and precision typical of competition. It is also useful for repairs and replacements of worn or damaged screws in existing suspension kits.

Frequently Asked Questions

What type of rail is this screw designed for?

As a Scaleauto component, it is primarily aimed at assemblies on Sport rail, common in Scaleauto and Slot.it circuits. However, as it is standard M2 screw, it can be used in any application requiring this screw format, regardless of the track system.

How many screws are included in the pack?

The SC-5145A pack includes 6 units of M2x5mm conical head screws in aluminium.

Why choose aluminium over steel in suspension?

Aluminium reduces the weight of the assembly, which in suspension areas can improve dynamic response and facilitate the balancing of the car. For competitive use where every gram matters, it is a common choice among builders.

What tool do I need to assemble these screws?

As it is metric 2 with a conical head, you will need a specific Allen key or screwdriver for M2. Check the exact profile of the head recess to choose the correct tool and avoid damaging the aluminium.

Can I use them to replace the original screws in a Scaleauto suspension kit?

Yes, as long as the specifications of the original kit match those of this screw: M2, total length 5 mm, and conical head of 4.8 mm. Check the measurements in your kit documentation before making the replacement.

Scaleauto SC-5145A conical head screws M2x5mm in aluminium for slot car suspension systems. Pack of 6 units. Metric 2, shank diameter 1.70 mm, head diameter 4.8 mm, thread length 3.5 mm. Lightweight aluminium construction ideal for competition slot car preparation, compatible with Sport rail systems. Perfect for builders and tuners looking for precision hardware in suspension assemblies.