Segway-Ninebot Chassis fastener kit, black zinc plated screw size
M4 · 8 mm long
If you are replacing a screw on Segway-Ninebot Chassis fastener kit, black zinc plated, the thread is M4, 8 mm long.
It is listed for inner hexagon cylindrical head after-sale kit M4*8.
This entry is marked reported and comes from csmegastore.com.
An M4 screw is 4 mm in diameter with a 0.7 mm pitch, tapped with a 3.3 mm drill; imperial look-alike: #8-32 (4.17 mm) — the standard US PC/rack screw, close but not the same.
Segway-Ninebot Chassis fastener kit, black zinc plated 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 |
|---|---|---|---|---|---|---|
| M4 | 8 mm | 0.7 mm | not stated | not stated | Inner hexagon cylindrical head after-sale kit M4*8 | Reported |
Fitment records and sources
Inner hexagon cylindrical head after-sale kit M4*8
pitch 0.7 mm · tap 3.3 mm · clearance 4.5 mm · PH2 / Torx T20
How to check the screw before you buy
- On vehicles and bikes, use the original strength class and finish; outdoor hardware is usually stainless or coated to resist corrosion.
- Diameter: across the threads an M4 screw measures about 4 mm with calipers (usually a hair under). If yours measures noticeably more or less, it is a different thread.
- Pitch: 0.7 mm from one thread crest to the next (14.29 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.
- The record states 8 mm. Going longer risks bottoming out or touching parts behind the hole; going shorter loses thread engagement.
- Driver: the source does not name the drive. Standard M4 heads take PH2 for Phillips and T20 for Torx, and a 3 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 M4 is about 2.0-3.0 N·m into metal threads and 0.8-1.4 N·m into plastic bosses; snug it up and stop.
Common mix-ups with M4
- Festo sensor brackets are named after the sensor interface (DASP-M4-...), but the bracket's own fixing screws are often a different size (M5/M6/M8).
- Some rackmount KVM switch kits pair M4x10 bracket-to-rack screws with M3.2x4.5 bracket-to-chassis screws (non-standard M3.2, not a true M3), so kits are not fully interchangeable with generic M3/M4 hardware.
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Devices whose records share a thread with Segway-Ninebot Chassis fastener kit, black zinc plated, closest length match first.
- Car badge / emblem studs also M4 × 8 mm
- RV / camper cabinet hardware also M4 × 8 mm
- Car centre console and vent trim also M4 × 8 mm
- VMAC Multifunction Power System D600007 also M4 × 8 mm
- IPS Group M5 Single-Space Smart Parking Meter mechanism retrofit module also M4 × 8 mm
- Agilent 8453 UV-Visible spectrophotometer also M4 × 8 mm
- Midea/Little Swan front-load washer control board technical service guide also M4 × 8 mm
- Tilta TA-RF-LPL adapter ring support (RED KOMODO cage) also M4 × 8 mm
Questions about Segway-Ninebot Chassis fastener kit, black zinc plated screws
- What size screw does Segway-Ninebot Chassis fastener kit, black zinc plated use?
- M4 × 8 mm for inner hexagon cylindrical head after-sale kit M4*8.
- How long are the screws in Segway-Ninebot Chassis fastener kit, black zinc plated?
- The record gives 8 mm. Measure the original from under the head (overall for a countersunk head) to confirm before ordering.
- What is the thread pitch of an M4 screw?
- 0.7 mm (coarse), which is the standard pitch for M4 machine screws; a 0.5 mm fine pitch exists but is uncommon. The tap drill is 3.3 mm and the normal clearance hole is 4.5 mm.
- What screwdriver do I need for Segway-Ninebot Chassis fastener kit, black zinc plated?
- The sources do not name the drive. For M4, Phillips heads normally take PH2 and Torx heads T20; socket heads take a 3 mm hex key.
- Can I use an imperial screw instead of M4?
- No. Imperial look-alike: #8-32 (4.17 mm) — the standard US PC/rack screw, close but not the same. Use a true M4 screw so it does not cross-thread or strip the hole.