TSC MH241 / MH341 / MH641 industrial label printer screw size
M3 · 5 to 8 mm long
TSC MH241 / MH341 / MH641 industrial label printer takes M3 metric screws in lengths from 5 to 8 mm.
It is listed for parts list machine screws M3*5, M3*6, M3*8.
This entry is marked confirmed and comes from tsc-drucker.com.
For reference, M3 is 3 mm across the threads at 0.5 mm pitch. The imperial size people confuse it with: #5-40 (3.18 mm) or #4-40 — neither interchanges with M3.
TSC MH241 / MH341 / MH641 industrial label printer 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 | 5–8 mm | 0.5 mm | not stated | not stated | Parts list machine screws M3*5, M3*6, M3*8 | Confirmed |
Fitment records and sources
Parts list machine screws M3*5, M3*6, M3*8
pitch 0.5 mm · tap 2.5 mm · clearance 3.4 mm · PH1 / Torx T10
How to check the screw before you buy
- Keep material and finish the same as the original (often stainless) on equipment that is cleaned or sterilised.
- 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 5–8 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
- Label printer parts lists write M3*6 with an asterisk; that is still a true ISO M3 x 6mm machine screw.
- Power-tool gearcase and clamshell screws are usually thread-forming (marked "ST") even when the parts list gives an M-size — a normal machine screw of the same size may not hold in the plastic boss.
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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M3 x 5mm Phillips Wafer Head Screw for Electronics & Project Box Repair - Pack of 50 Black
$4.79 each · min. 2
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M3 x 6mm Replacement Screws for XLR Audio Connectors Phillips Wafer Head 50-Pack
$4.99 -
M3 x 6mm Phillips Wafer Head Carbon Steel Machine Screws for XLR Audio Connectors | 50-Pack (Black)
$4.99
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M3 x 8mm Screws for Leather Spike Attachments Guitar Straps 10-Pack
$4.99 -
M3 x 8mm Phillips Wafer Head Screw for SLA Resin 3D Printer VAT Film - Single Replacement Black
$0.10 each · min. 50
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M3 x 6mm Phillips Wafer Head Screw for 3D Printer Frame Assembly - Single Replacement Black
$0.10 each · min. 50
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M3 x 6mm Phillips Wafer Head Screw for Boutique Guitar Pedal Enclosure - Single Replacement Black
$0.10 each · min. 50
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M3 x 8mm Phillips Flat Head Countersunk Machine Screws Zinc Silver 100-Pack for RC & 3D Printers
$9.99
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Devices whose records share a thread with TSC MH241 / MH341 / MH641 industrial label printer, closest length match first.
- Surgical / veterinary instrument handles also M3 × 5–8 mm
- Agilent 1100 LC/MSD mass spectrometer also M3 × 8 mm
- SISAB ECO.50+/T laboratory centrifuge also M3 × 8 mm
- Fisherbrand microplate clamp screw (lab automation) also M3 × 6 mm
- Agilent 8453 UV-Visible spectrophotometer also M3 × 8 mm
- Philips System One CPAP housing also M3 × 8 mm
- Philips IntelliVue MP80/MP90 small parts kit M8010-64001 also M3 × 6 mm
- ResMed VPAP / S8 service hardware also M3 × 6–8 mm
Questions about TSC MH241 / MH341 / MH641 industrial label printer screws
- What size screw does TSC MH241 / MH341 / MH641 industrial label printer use?
- M3 × 5–8 mm for parts list machine screws M3*5, M3*6, M3*8.
- How long are the screws in TSC MH241 / MH341 / MH641 industrial label printer?
- The records range from 5 to 8 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 TSC MH241 / MH341 / MH641 industrial label printer?
- 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 TSC MH241 / MH341 / MH641 industrial label printer?
- TechSpareWarehouse (our own store) lists M3 x 5mm, M3 x 6mm and M3 x 8mm, which match lengths in the records above.