Bicycle 6-bolt disc brake rotors (Shimano/SRAM/Magura) screw size
M5 · 10 to 13 mm long
Our records put Bicycle 6-bolt disc brake rotors (Shimano/SRAM/Magura) on M5 screws in lengths from 10 to 13 mm.
Where it is used: rotor mounting bolts are M5 with T25 Torx drive.
Head and drive, as the source states them: Torx T25 drive.
This entry is marked confirmed and comes from tipartstitanium.com.
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.
Bicycle 6-bolt disc brake rotors (Shimano/SRAM/Magura) 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 | 10–13 mm | 0.8 mm | not stated | Torx T25 | Rotor mounting bolts are M5 with T25 Torx drive | Confirmed |
Fitment records and sources
Rotor mounting bolts are M5 with T25 Torx drive
pitch 0.8 mm · tap 4.2 mm · clearance 5.5 mm · PH2 / Torx T25
How to check the screw before you buy
- Where the manufacturer publishes a torque value, use a torque driver rather than feel.
- 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 10–13 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
- Shimano SPD cleat bolts are widely sold as M5 x 8, but Shimano's own dealer manuals don't state the thread — check the old bolt.
- 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.
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M5 x 10mm Black Wafer Head Folding Mechanism Screws for GOTRAX GXL V2, Rival, XR Ultra & XR Elite – 10-Pack Replacement
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The same screw also fits
Devices whose records share a thread with Bicycle 6-bolt disc brake rotors (Shimano/SRAM/Magura), closest length match first.
- Bicycle water bottle cage mounts also M5 × 12–13 mm
- Motorcycle windscreen also M5 × 12–13 mm
- VMAC Multifunction Power System D600007 also M5 × 10 mm
- Bicycle bottle cage bosses (near universal) also M5 × 12–13 mm
- EVBox Troniq Compact Modular also M5 × 10 mm
- Aftermarket car stereo cage also M5 × 10 mm
- Xiaomi M365 / Ninebot deck cover also M5 × 10–13 mm
- E-scooter deck & folding covers also M5 × 10–13 mm
Questions about Bicycle 6-bolt disc brake rotors (Shimano/SRAM/Magura) screws
- What size screw does Bicycle 6-bolt disc brake rotors (Shimano/SRAM/Magura) use?
- M5 × 10–13 mm for rotor mounting bolts are M5 with T25 Torx drive.
- How long are the screws in Bicycle 6-bolt disc brake rotors (Shimano/SRAM/Magura)?
- The records range from 10 to 13 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 Bicycle 6-bolt disc brake rotors (Shimano/SRAM/Magura)?
- 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.