Motorola MOTOTRBO XPR5350 / CM200d / CM300d mobile radios screw size
M3 · 13 mm long
If you are replacing a screw on Motorola MOTOTRBO XPR5350 / CM200d / CM300d mobile radios, the thread is M3, 13 mm long.
Where it is used: M3 x 0.5 x 13mm main shield screw, T10 Torx, 1.5 Nm.
Head and drive, as the source states them: Torx T10 drive.
This entry is marked confirmed and comes from wirelessradios.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.
Motorola MOTOTRBO XPR5350 / CM200d / CM300d mobile radios screw specifications
One row per fitment record. Head, drive and torque are shown only where the source states them; pitch is the ISO coarse pitch for the thread.
| Thread | Length | Pitch | Head | Drive | Torque | Where it goes | Status |
|---|---|---|---|---|---|---|---|
| M3 | 13 mm | 0.5 mm | not stated | Torx T10 | 1.5 Nm | M3 x 0.5 x 13mm main shield screw, T10 Torx, 1.5 Nm | Confirmed |
Fitment records and sources
M3 x 0.5 x 13mm main shield screw, T10 Torx, 1.5 Nm
pitch 0.5 mm · tap 2.5 mm · clearance 3.4 mm · PH1 / Torx T10
How to check the screw before you buy
- Take one original screw out first and measure it before ordering; the record above tells you the thread, the original screw tells you the exact length and head.
- 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 13 mm. Going longer risks bottoming out or touching parts behind the hole; going shorter loses thread engagement.
- Driver: the source names a Torx T10 drive. For comparison, standard M3 heads take PH1 (Phillips) or T10 (Torx), or a 2.5 mm hex key.
Common mix-ups with M3
- Many gas-detector and sensor manuals only give a torque spec (e.g. '0.5 N·m max') without repeating the thread size at every mention — the explicit M3 callout is usually only in the accessories/spare-parts table, not the main installation steps.
- M3 (3.0mm, 0.5mm pitch) is not #6-32 UNC (~3.5mm) — they look identical and cross-thread, the single most common PC-building mistake.
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Devices whose records share a thread with Motorola MOTOTRBO XPR5350 / CM200d / CM300d mobile radios, closest length match first.
- 2020 aluminium extrusion T-nuts also M3 × 13 mm
- NBK cleanroom vented captive-washer screw (SVSI1S-M3-PC) also M3 × 13 mm
- Wurth Elektronik WA-HEX hexagonal lock screw also M3 × 13 mm
- FPV carbon frame arms and standoffs also M3 × 13 mm
- Surgical instrument tray racks also M3 × 13 mm
- PC watercooling radiator fan screws also M3 × 13 mm
- ResMed S9 Elite CPAP chassis also M3 × 13 mm
- NEMA 17 stepper motor mounting also M3 × 13 mm
Questions about Motorola MOTOTRBO XPR5350 / CM200d / CM300d mobile radios screws
- What size screw does Motorola MOTOTRBO XPR5350 / CM200d / CM300d mobile radios use?
- M3 × 13 mm for M3 x 0.5 x 13mm main shield screw, T10 Torx, 1.5 Nm.
- How long are the screws in Motorola MOTOTRBO XPR5350 / CM200d / CM300d mobile radios?
- The record gives 13 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 Motorola MOTOTRBO XPR5350 / CM200d / CM300d mobile radios?
- The source lists a Torx T10 drive. Standard M3 heads otherwise take PH1 (Phillips) or T10 (Torx), or 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.
- How tight should the M3 screw on Motorola MOTOTRBO XPR5350 / CM200d / CM300d mobile radios be?
- The source gives 1.5 Nm for M3 x 0.5 x 13mm main shield screw, T10 Torx, 1.5 Nm.