The screw you can't see, but makes a difference in every assembly
When working with chassis, bases, or any assembly where the screw head cannot protrude, the countersunk screw is the only correct option. This reference CXM362 features the classic DIN 963 M2x10: flat countersunk head with straight slot, metric 2 and a shank length of 10 mm. Ten units per pack to always have spares on hand in the workshop.
Main features
- Standard: DIN 963 (countersunk head with straight slot)
- Metric: M2
- Shank length: 10 mm
- Head: countersunk, flush with the surface once tightened
- Drive: flat-head screwdriver
- Pack contents: 10 units
Function and applications in the hobby
The countersunk geometry allows the head to embed in the material, providing a completely flat surface after tightening. This is particularly useful in:
- Securing components in slot car chassis where any protrusion would interfere with the track surface or other moving parts.
- Assembling bases, guides, or supports where a clean and interference-free finish is sought.
- Mounting static model kits, figures, and dioramas where the aesthetics of the assembly matter as much as the fastening.
- Any modelling application using fine wood, plastic, resin, or aluminium where a flush fastening is required.
Assembly and usage recommendations
For the countersunk screw to function correctly, the pilot hole must include a countersink with an appropriately angled drill bit or cutter (usually 90°), so that the head is perfectly seated. With M2, it is advisable not to exceed the tightening torque: the small diameter makes the shank delicate if over-tightened, especially in soft plastics or resins.
Storing the pack in a small component organiser makes it easier to always have units available, as this type of screw can easily disappear in the workshop drawer.
Frequently asked questions
What is the difference between a countersunk screw and a cylindrical head screw?
The countersunk screw has a head in the shape of a truncated cone that embeds in the material, remaining flush with the surface. The cylindrical head screw (such as DIN 912 or DIN 7985) always protrudes above. For fixings where the profile needs to be as low as possible, the countersunk option is the appropriate choice.
What screwdriver do I need for DIN 963?
The DIN 963 standard specifies a straight slot, so it is operated with a flat screwdriver of the size corresponding to M2. There are similar versions with Phillips head (DIN 965) or Pozidriv, but this reference is single slot.
Can I use these screws in plastic chassis?
Yes, but with caution. Plastic requires a correct pilot hole and countersink to avoid cracking the material when tightening. With harder resins or aluminium, the process is the same, although the tightening can accommodate slightly more torque.
Why are there 10 units and not fewer?
In slot and modelling assemblies, it is common to need several fixing points in the same project, and having spare units prevents work interruptions if any become damaged or lost. The pack of 10 balances convenience and cost.
What shank length should I choose?
The 10 mm of this reference is suitable for material thicknesses of approximately 4 to 8 mm, leaving enough thread for a secure tightening. For thinner materials, there are shorter versions (M2x4, M2x6), and for greater thicknesses, longer versions.
The DIN 963 M2x10 countersunk slotted screw is a go-to fastener for slot car chassis assembly, static model kits, figure bases and diorama construction. Its flush-fit head keeps surfaces clean and interference-free, making it the preferred choice among hobbyists who demand precision in every build. Pack of 10 units, reference CXM362, available at Ministry of Hobby.