Cone Head Screws 4.8mm M2x6mm

Scaleauto special suspension screws: precision to the millimetre for your slot preparation

When tuning a competition slot car, every component matters. The SC-5145B screws from Scaleauto are made from aluminium and specifically designed for suspension systems, featuring a conical head geometry that allows for a clean seat and a snug fit. Small in size, but significant in importance within the assembly.

Technical specifications

• Material: Aluminium
• Metric: M2
• Total length: 6 mm
• Head diameter: 4.8 mm (countersunk)
• Shank diameter: ø 1.70 mm
• Thread length: 3.5 mm
• Shank length: 2.5 mm
• Units per pack: 6

Function and performance

The 4.8 mm conical head allows the screw to sit flush or slightly recessed in the part it secures, preventing interference with other chassis or body components. This is particularly relevant in suspension geometries where space is minimal, and any protrusion can affect the travel or dynamic behaviour of the car.

The use of aluminium as the base material reduces weight compared to conventional steel screws, a detail that adds up in competition preparations alongside other optimisations of the assembly.

Assembly and preparation

When working with M2 metric and a shank diameter of just 1.70 mm, it is advisable to use appropriately sized tools to avoid damaging the head or the thread. A screwdriver with a well-fitted tip to the conical profile ensures correct tightening without deforming the aluminium. Excessive force is not necessary: aluminium has a lower torque limit than steel, and with M2 threads, the risk of stripping is real if over-tightened.

If mounted in parts also made of aluminium or resin, it is advisable to periodically check the torque, especially after the first running sessions, as materials tend to settle.

Frequently asked questions

What type of slot cars are these screws intended for?

They are designed for slot preparations that incorporate suspension systems, especially competition cars where machined aluminium parts are used. They are compatible with systems and assemblies that utilise standard M2 threading.

Why a conical head and not cylindrical or flat head?

The conical head allows the screw to be recessed into the designed housing, sitting flush with the surface. This prevents interference with other components and distributes the load more evenly across the material of the part.

Can aluminium screws be reused?

Yes, with caution. Aluminium is softer than steel, so it is advisable not to over-tighten or use ill-fitting tools that could damage the head slot. With careful use, these screws can withstand several assemblies and disassemblies without issue.

Are the 6 units sufficient for a complete suspension assembly?

It depends on the specific design of the suspension and chassis. In most slot suspension configurations for a single car, 6 units cover the needs of the assembly, although it is always a good idea to have a spare pack given the small size of these components.

Are they standard metric screws or special pitch?

They are standard M2 metric, so they are compatible with any conventional M2 nut or threaded insert, without the need for specific tools or accessories outside of what is usual in slot preparation.

Scaleauto SC-5145B conical head screws M2x6mm in aluminium — a precision fastener set of 6 units developed for slot car suspension systems. Lightweight aluminium construction, 4.8 mm countersunk head, 1.70 mm shank diameter and 3.5 mm thread length make these screws an ideal choice for competitive slot car builders seeking clean fitment and minimal weight. Compatible with standard M2 threading, suitable for aluminium chassis and suspension components used in 1/32 and 1/24 scale slot racing preparation.