Wheelchair rear wheel axle bolts screw size
M5 · 15 to 30 mm long
The screws used on Wheelchair rear wheel axle bolts are M5 in lengths from 15 to 30 mm.
The record covers axle retention on manual wheelchairs.
This entry is marked reported and comes from wheelchair-parts.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.
Wheelchair rear wheel axle bolts 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 | 15–30 mm | 0.8 mm | not stated | not stated | Axle retention on manual wheelchairs | Reported |
Fitment records and sources
Axle retention on manual wheelchairs
pitch 0.8 mm · tap 4.2 mm · clearance 5.5 mm · PH2 / Torx T25
How to check the screw before you buy
- Scope and accessory mounts often publish a torque value; tighten to it in a cross pattern.
- 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 15–30 mm, which means different positions take different lengths — match each hole to its own screw.
- Driver: the source does not name the drive. Standard M5 heads take PH2 for Phillips and T25 for Torx, and a 4 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 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
- Stacking frame + rack tab + fender stay needs 18-20mm bolts, not the 12-16mm that come with a cage.
- The 'GoPro thread' is M5-0.8, a de facto standard on third-party mounts, and is not the imperial 1/4-20 tripod thread.
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Devices whose records share a thread with Wheelchair rear wheel axle bolts, closest length match first.
- Ski binding insert flat-head screw kit also M5 × 15–26 mm
- Snowboard binding disc screws also M5 × 15–16 mm
- Pride Mobility wheelchair battery box also M5 × 16 mm
- Sea-Doo personal watercraft socket head screw also M5 × 16 mm
- Wakeboard / water-ski binding plates also M5 × 15–20 mm
- Powersports battery terminal bolts (alt size) also M5 × 15–20 mm
- Elliptical pedal arm bolts also M5 × 15–25 mm
- Aimpoint Comp M4 / M4s LRP & TNP mount also M5 × 15 mm
Questions about Wheelchair rear wheel axle bolts screws
- What size screw does Wheelchair rear wheel axle bolts use?
- M5 × 15–30 mm for axle retention on manual wheelchairs.
- How long are the screws in Wheelchair rear wheel axle bolts?
- The records range from 15 to 30 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 Wheelchair rear wheel axle bolts?
- The sources do not name the drive. For M5, Phillips heads normally take PH2 and Torx heads T25; socket heads take 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.