Scaleauto slot car chassis screw size
M2 · length not stated in the sources
Our records put Scaleauto slot car chassis on M2 screws. None of the sources we found gives an exact length, so measure the original before you order.
It is listed for steel M2 self-blocking nuts for chassis screws.
This entry is marked confirmed and comes from slotcar-union.com.
M2 means a 2 mm nominal diameter with a 0.4 mm thread pitch. Imperial look-alike: #2-56 UNC (2.18 mm) is close but not interchangeable.
Scaleauto slot car chassis screw specifications
One row per fitment record. Head, drive are shown only where the source states them; pitch is the ISO coarse pitch for the thread.
| Thread | Length | Pitch | Head | Drive | Where it goes | Status |
|---|---|---|---|---|---|---|
| M2 | not stated | 0.4 mm | not stated | not stated | Steel M2 self-blocking nuts for chassis screws | Confirmed |
Fitment records and sources
Steel M2 self-blocking nuts for chassis screws
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
How to check the screw before you buy
- Frame and motor screws must not reach the motor windings; check the length against the motor's mounting depth.
- Diameter: across the threads an M2 screw measures about 2 mm with calipers (usually a hair under). If yours measures noticeably more or less, it is a different thread.
- Pitch: 0.4 mm from one thread crest to the next (25 crests per centimetre). A thread pitch gauge or the pitch-gauge tool settles it in seconds.
- Length: measure from under the head to the tip for pan, button, wafer and cap heads; countersunk (flat) heads are measured overall.
- Driver: the source does not name the drive. Standard M2 heads take PH0 for Phillips and T6 for Torx, and a 1.5 mm hex key for socket heads; a bit that fits loosely will cam out and strip the head.
- Tightening: no device-specific torque is published in these records. The site's general figure for M2 is about 25-40 N·cm into metal threads and 12-20 N·cm into plastic bosses; snug it up and stop.
Common mix-ups with M2
- Xbox Series X internal chassis screws are M3, not M2 (confirmed on iFixit) — a widespread misconception.
- Slot car brands also use M2.2 and M2.6 threads that look like M2 but will not interchange - Slot.it M2.2x4.5 motor mount and SCC M2.6x8 body screws are separate sizes.
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Devices whose records share a thread with Scaleauto slot car chassis, closest length match first.
- RC model servo mounting also M2
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- Axial SCX10 III RC crawler chassis also M2
- NSR PK guide (1/32 slot car) also M2
- Tamiya DT-03 buggy servo saver also M2
- PowerVision PowerRay underwater drone also M2
- Vintage radio chassis and dial screws also M2
- FPV flight controller stack 20x20mm also M2
Questions about Scaleauto slot car chassis screws
- What size screw does Scaleauto slot car chassis use?
- M2 for steel M2 self-blocking nuts for chassis screws.
- How long are the screws in Scaleauto slot car chassis?
- None of the sources states a length. Remove one screw and measure it from under the head to the tip (overall for a countersunk head).
- What is the thread pitch of an M2 screw?
- 0.4 mm (coarse), which is the standard pitch for M2 machine screws; a 0.25 mm fine pitch exists but is uncommon. The tap drill is 1.6 mm and the normal clearance hole is 2.4 mm.
- What screwdriver do I need for Scaleauto slot car chassis?
- The sources do not name the drive. For M2, Phillips heads normally take PH0 and Torx heads T6; socket heads take a 1.5 mm hex key.
- Can I use an imperial screw instead of M2?
- No. Imperial look-alike: #2-56 UNC (2.18 mm) is close but not interchangeable. Use a true M2 screw so it does not cross-thread or strip the hole.