Six-bolt disc brake rotor screw size
M5 · 8 to 10 mm long
If you are replacing a screw on Six-bolt disc brake rotor, the thread is M5 in lengths from 8 to 10 mm.
It is listed for rotor to hub, Torx T25, the industry standard pattern.
Head and drive, as the source states them: Torx T25 drive.
This entry is marked confirmed and comes from tasmanbikes.co.nz.
M5 means a 5 mm nominal diameter with a 0.8 mm thread pitch. Imperial look-alike: #10-32 (4.83 mm) — the other common rack thread; check before mixing.
Six-bolt disc brake rotor 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 |
|---|---|---|---|---|---|---|
| M5 | 8–10 mm | 0.8 mm | not stated | Torx T25 | rotor to hub, Torx T25, the industry standard pattern | Confirmed |
Fitment records and sources
rotor to hub, Torx T25, the industry standard pattern
pitch 0.8 mm · tap 4.2 mm · clearance 5.5 mm · PH2 / Torx T25
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 M5 screw measures about 5 mm with calipers (usually a hair under). If yours measures noticeably more or less, it is a different thread.
- Pitch: 0.8 mm from one thread crest to the next (12.5 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 records span 8–10 mm, which means different positions take different lengths — match each hole to its own screw.
- Driver: the source names a Torx T25 drive. For comparison, standard M5 heads take PH2 (Phillips) or T25 (Torx), or a 4 mm hex key.
- Tightening: no device-specific torque is published in these records. The site's general figure for M5 is about 4.0-6.0 N·m into metal threads and 1.5-2.5 N·m into plastic bosses; snug it up and stop.
Common mix-ups with M5
- Carbon bosses strip easily: 2-4 Nm torque and the right length so the bolt doesn't bottom out.
- Wheelchair and mobility OEM screws specify an exact standard and strength class (ISO 7045 CL4.8, ISO 4762 CL12.9). Matching only the thread size can cause a failure under load.
Buy these screws at TechSpare Warehouse
In stock and shipped from South Carolina. Our black screws are Phillips wafer head (low profile); match the head style and length to the original before you order.
-
M5 x 10mm Black Wafer Head Bike Fender & Rack Screws for Tern MTR Fenders, Blackburn EX-1 Rack, ENVO Stax & René Herse Fender Set – 10-Pack Replacement
$5.99Choose size -
M5 x 10mm Black Wafer Head Folding Mechanism Screws for GOTRAX GXL V2, Rival, XR Ultra & XR Elite – 10-Pack Replacement
$5.99Choose size
More in Vehicles, Marine & Mobility
The same screw also fits
Devices whose records share a thread with Six-bolt disc brake rotor, closest length match first.
- Kick scooter clamp and folding hardware also M5 × 10 mm
- SPD-SL / Look 3-hole cycling cleats also M5 × 10 mm
- Bicycle bottle cage boss also M5 × 10 mm
- Berkel 330M Slicer carriage/guard fastener also M5 × 10 mm
- Car door trim panel also M5 × 10 mm
- Mobility scooter battery box screw set also M5 × 10 mm
- Shimano BL-M785 hydraulic brake lever also M5 × 8–10 mm
- Segway-Ninebot F/F2 Pro/P scooters Hex flat round head chassis screw also M5 × 10 mm
Questions about Six-bolt disc brake rotor screws
- What size screw does Six-bolt disc brake rotor use?
- M5 × 8–10 mm for rotor to hub, Torx T25, the industry standard pattern.
- How long are the screws in Six-bolt disc brake rotor?
- The records range from 8 to 10 mm depending on the position, so match each screw to its own hole.
- What is the thread pitch of an M5 screw?
- 0.8 mm (coarse), which is the standard pitch for M5 machine screws; a 0.5 mm fine pitch exists but is uncommon. The tap drill is 4.2 mm and the normal clearance hole is 5.5 mm.
- What screwdriver do I need for Six-bolt disc brake rotor?
- The source lists a Torx T25 drive. Standard M5 heads otherwise take PH2 (Phillips) or T25 (Torx), or a 4 mm hex key.
- Can I use an imperial screw instead of M5?
- No. Imperial look-alike: #10-32 (4.83 mm) — the other common rack thread; check before mixing. Use a true M5 screw so it does not cross-thread or strip the hole.