Bike computer out-front mount screw size
M3 · 10 to 20 mm long
Bike computer out-front mount takes M3 metric screws in lengths from 10 to 20 mm.
The record covers tightens the handlebar clamp on GPS mounts.
This entry is marked reported and comes from alibaba.com.
M3 means a 3 mm nominal diameter with a 0.5 mm thread pitch. Imperial look-alike: #5-40 (3.18 mm) or #4-40 — neither interchanges with M3.
Bike computer out-front mount 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 |
|---|---|---|---|---|---|---|
| M3 | 10–20 mm | 0.5 mm | not stated | not stated | tightens the handlebar clamp on GPS mounts | Reported |
Fitment records and sources
tightens the handlebar clamp on GPS mounts
pitch 0.5 mm · tap 2.5 mm · clearance 3.4 mm · PH1 / Torx T10
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 M3 screw measures about 3 mm with calipers (usually a hair under). If yours measures noticeably more or less, it is a different thread.
- Pitch: 0.5 mm from one thread crest to the next (20 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 10–20 mm, which means different positions take different lengths — match each hole to its own screw.
- Driver: the source does not name the drive. Standard M3 heads take PH1 for Phillips and T10 for Torx, and a 2.5 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 M3 is about 80-130 N·cm into metal threads and 35-60 N·cm into plastic bosses; snug it up and stop.
Common mix-ups with M3
- Suunto dive computer service manuals reference strap pins and battery compartment springs but do not explicitly cite a metric screw thread size in the sections reviewed; do not infer M2/M2.5 fitment for Suunto dive computer straps without direct confirmation.
- Telescope thumbscrews are sold in a wide non-metric legacy range too (1/4-20, 8-32, 10-32 on many Meade/Celestron mounts), so metric M3/M4 fitment applies mainly to newer/international accessory ecosystems (SkyWatcher, generic 1.25" accessories) and should not be assumed universal.
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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More in Vehicles, Marine & Mobility
The same screw also fits
Devices whose records share a thread with Bike computer out-front mount, closest length match first.
- Tyco/Advanced MX1 fire panel loop card kit (FP0950) also M3 × 10 mm
- Fishing reel side plate / frame also M3 × 10–12 mm
- Airgun scope/rail mount replacement screws also M3 × 10 mm
- Glider radio panel mounting screw also M3 × 12 mm
- E-scooter stem and controller housing also M3 × 10–16 mm
- Fishing reel handle retainer also M3 × 10 mm
- Scope / rail mount base screws (small metric) also M3 × 10 mm
- Studio monitor panels also M3 × 10–20 mm
Questions about Bike computer out-front mount screws
- What size screw does Bike computer out-front mount use?
- M3 × 10–20 mm for tightens the handlebar clamp on GPS mounts.
- How long are the screws in Bike computer out-front mount?
- The records range from 10 to 20 mm depending on the position, so match each screw to its own hole.
- What is the thread pitch of an M3 screw?
- 0.5 mm (coarse), which is the standard pitch for M3 machine screws; a 0.35 mm fine pitch exists but is uncommon. The tap drill is 2.5 mm and the normal clearance hole is 3.4 mm.
- What screwdriver do I need for Bike computer out-front mount?
- The sources do not name the drive. For M3, Phillips heads normally take PH1 and Torx heads T10; socket heads take a 2.5 mm hex key.
- Can I use an imperial screw instead of M3?
- No. Imperial look-alike: #5-40 (3.18 mm) or #4-40 — neither interchanges with M3. Use a true M3 screw so it does not cross-thread or strip the hole.
- Where can I buy replacement screws for Bike computer out-front mount?
- TechSpareWarehouse (our own store) lists M3 x 10mm, M3 x 12mm and M3 x 14mm, which match lengths in the records above.







