Allen tip M3 1.5mm

Millimetric precision where it matters most: the M3 allen tip from Sloting Plus

When fine work on the bench demands reliability, the details make the difference. This allen tip with a 1.5 mm hexagon and 2.3 mm diameter, made from hardened steel, is specifically designed to act on M3 allen screws, the most common type of fastener in chassis, motor mounts, and drivetrain assemblies of competitive slot cars.

Technical specifications

• Hexagon: 1.5 mm
• Shank diameter: 2.3 mm
• Application: allen screws M3
• Material: hardened steel for greater durability and wear resistance
• Contents: 1 unit
• Reference: SP141013
• Brand: Sloting Plus

Function and performance

The hardened steel ensures that the tip maintains its hexagonal geometry even after intensive use. A deformed head transmits torque poorly, rounds the screw, and ultimately renders it unusable; with a quality tip, the fit is clean, the tightening is controlled, and no marks are left on the screw head.

The 2.3 mm shank diameter allows it to fit correctly into the precision bit holders and screwdrivers commonly used in the slot preparation workshop, offering stability and centring during rotation.

Compatibility and assembly

Designed to work with M3 allen screws, the most widespread thread in competitive slot components: motor fastening, crown tightening, bench adjustment, or body mounting with metal anchoring, among other common uses.

Using it with an appropriate precision screwdriver or bit holder ensures the correct torque without the risk of over-tightening, which is critical for technical plastic or lightweight aluminium parts.

Assembly and preparation: practical tips

• Always check that the tip is fully seated in the hexagon of the screw before turning.
• Apply torque gradually; M3 screws in composite materials or aluminium have little margin before breaking due to over-tightening.
• Periodically check the condition of the tip: if rounded edges appear, replace it. Hardened steel holds up well, but accumulated wear eventually affects the fit.
• Combine this tip with the allen keys and adjustment tools from the Sloting Plus range for a complete and coherent workbench.

Common mistakes

• Using a 1.5 mm tip on M2 or M4 screws: the hexagon does not fit correctly and both the screw and the tip become rounded.
• Forcing the turn without seating the tip: causes marks on the screw head and complicates future disassemblies.
• Ignoring the condition of the tip: a worn tool can ruin expensive or hard-to-replace screws in competition components.

Frequently asked questions

What type of screwdriver or bit holder is this tip compatible with?

With any precision bit holder or screwdriver that accommodates shanks of 2.3 mm in diameter, the standard usual in modelling and slot preparation tools.

What screws is it specifically indicated for?

For M3 allen screws, that is, screws with a metric size of 3 with a 1.5 mm internal hexagonal head. It is one of the most common fasteners in chassis, motor mounts, and drivetrain assemblies of slot cars.

Does hardened steel offer any real advantage over standard tips?

Yes. Hardening increases surface hardness, which reduces wear on the hexagonal edges and prolongs the life of the tip, especially with frequent use on stainless steel or titanium screws.

Can I use this tip to loosen very tight or seized screws?

Yes, as long as the applied torque is reasonable and the tip is well seated. For seized screws, it is recommended to apply a penetrating oil beforehand and proceed calmly to avoid damaging the screw head.

How many units are included in the shipment?

The bag contains 1 unit.

The Sloting Plus SP141013 is a 1.5 mm hex allen tip made from hardened steel, specifically designed for M3 allen screws — the standard fastener in slot car chassis, motor mounts and drivetrain assemblies. With a 2.3 mm shank diameter, it fits most precision screwdrivers and bit holders used in slot car preparation and tuning. A reliable, durable workshop tool for club racers and serious hobbyists.