Scaleauto SC-1629 nylon guide nut (1/24 slot car) screw size
M2 · length not stated in the sources
Scaleauto SC-1629 nylon guide nut (1/24 slot car) takes M2 metric screws. None of the sources we found gives an exact length, so measure the original before you order.
The record covers nylon guide nut with M2 fixing screw for guide flag.
This entry is marked confirmed and comes from slotcar-union.com.
For reference, M2 is 2 mm across the threads at 0.4 mm pitch. The imperial size people confuse it with: #2-56 UNC (2.18 mm) is close but not interchangeable.
Scaleauto SC-1629 nylon guide nut (1/24 slot car) 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 | Nylon guide nut with M2 fixing screw for guide flagthread-locking patch | Confirmed |
Fitment records and sources
Nylon guide nut with M2 fixing screw for guide flag
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
- 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.
- M2 (2.00mm, 0.4mm pitch) is NOT the same as #2-56 UNC (2.18mm) — close enough to cross-thread and strip if forced.
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Devices whose records share a thread with Scaleauto SC-1629 nylon guide nut (1/24 slot car), closest length match first.
- DJI Phantom GoPro-style under-body mount also M2
- Futaba micro servo self-tapping screw also M2
- MTH Premier SD-70 (2-rail HO locomotive) also M2
- Scaleauto SC-1652 (1/32 slot car) also M2
- E-flite Gee Bee R-2 wing connector also M2
- Mechanical clock movement plates also M2
- ALware Quad Flyer Spider 500 quadcopter kit also M2
- FPV brushless motors (NewBeeDrone etc.) also M2
Questions about Scaleauto SC-1629 nylon guide nut (1/24 slot car) screws
- What size screw does Scaleauto SC-1629 nylon guide nut (1/24 slot car) use?
- M2 for nylon guide nut with M2 fixing screw for guide flag.
- How long are the screws in Scaleauto SC-1629 nylon guide nut (1/24 slot car)?
- 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 SC-1629 nylon guide nut (1/24 slot car)?
- 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.