Allparts metric bridge length screws screw size
M3 · 15 mm long
If you are replacing a screw on Allparts metric bridge length screws, the thread is M3, 15 mm long.
Where it is used: M3 x 15mm nickel bridge length (intonation) screws with springs.
This entry is marked reported and comes from fredguitar.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.
Allparts metric bridge length screws 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 | 15 mm | 0.5 mm | not stated | not stated | M3 x 15mm nickel bridge length (intonation) screws with springs | Reported |
Fitment records and sources
M3 x 15mm nickel bridge length (intonation) screws with springs
pitch 0.5 mm · tap 2.5 mm · clearance 3.4 mm · PH1 / Torx T10
How to check the screw before you buy
- Instrument and audio hardware often threads into wood or thin metal; a screw that is too long can poke through a finished surface.
- 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 record states 15 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 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.
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Browse all 48 in Audio, Music & Stage →The same screw also fits
Devices whose records share a thread with Allparts metric bridge length screws, closest length match first.
- Martin MAC 500 moving head fixture also M3 × 15 mm
- Metric guitar bridge saddle length adjustment also M3 × 15 mm
- Voron 2.4 gantry and panels also M3 × 15 mm
- Voron 2.4 / Trident printed parts also M3 × 15 mm
- Nerf blaster thumbscrews (mid sizes) also M3 × 15 mm
- cab Applicator A3200 print-and-apply labeling system (packaging line hardware) also M3 × 15 mm
- Prusa i3 MK3S/MK4 printed parts and extruder also M3 × 15 mm
- ISO 14581 hexalobular (Torx) countersunk screw also M3 × 15 mm
Questions about Allparts metric bridge length screws screws
- What size screw does Allparts metric bridge length screws use?
- M3 × 15 mm for M3 x 15mm nickel bridge length (intonation) screws with springs.
- How long are the screws in Allparts metric bridge length screws?
- The record gives 15 mm. Measure the original from under the head (overall for a countersunk head) to confirm before ordering.
- 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 Allparts metric bridge length screws?
- 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.