HP M24fw screw size
M3 · 4 to 6 mm long
If you are replacing a screw on HP M24fw, the thread is M3 in lengths from 4 to 6 mm.
There are 4 separate fitment records for it, including hinge (black) (M3), stand (black) (M3) and back cover (black) (M3), plus 1 more in the table below.
4 of the 4 records are marked confirmed, drawn from 1 source (h10032.www1.hp.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.
HP M24fw 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 | 4 mm | 0.5 mm | not stated | not stated | Hinge (black)black finish | Confirmed |
| M3 | 4 mm | 0.5 mm | not stated | not stated | Stand (black)black finish | Confirmed |
| M3 | 6 mm | 0.5 mm | not stated | not stated | Back cover (black)black finish | Confirmed |
| M3 | 6 mm | 0.5 mm | not stated | not stated | Hinge (black)black finish | Confirmed |
Fitment records and sources
Hinge (black)
pitch 0.5 mm · tap 2.5 mm · clearance 3.4 mm · PH1 / Torx T10
Stand (black)
pitch 0.5 mm · tap 2.5 mm · clearance 3.4 mm · PH1 / Torx T10
Back cover (black)
pitch 0.5 mm · tap 2.5 mm · clearance 3.4 mm · PH1 / Torx T10
Hinge (black)
pitch 0.5 mm · tap 2.5 mm · clearance 3.4 mm · PH1 / Torx T10
How to check the screw before you buy
- For a wall or arm mount, the screw has to engage the threaded insert by several turns but must not bottom out, so measure the insert depth and add the thickness of the bracket and any spacers.
- 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 4–6 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
- 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.
- 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.
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 4mm Phillips Wafer Head Screws for 2.5 SATA SSD Mounting 10-Pack
$4.99 -
M3 x 4mm Screws for Installing SSD into Synology NAS 10-Pack
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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 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 4mm Phillips Wafer Head Screws for HDD Caddy Bracket 10-Pack
$4.99 -
M3 x 4mm Phillips Wafer Head Screws for SSD Hard Drive 10-Pack Black
$4.99
More in Displays, TVs & Mounts
The same screw also fits
Devices whose records share a thread with HP M24fw, closest length match first.
- Dell U2417HA also M3 × 6 mm
- Dell P2421D also M3 × 6 mm
- Dell U2518D also M3 × 6 mm
- Stinger SE-SDIN display lock screw also M3 × 6 mm
- Dell U2515H also M3 × 6 mm
- Dell U2417HJ also M3 × 6 mm
- Mindray VS-900 Vital Signs Monitor also M3 × 6 mm
- Giada JC530 signage player Theft-proof lock mounting screws (2 pcs) also M3 × 4 mm
Questions about HP M24fw screws
- What size screw does HP M24fw use?
- M3 × 4 mm for hinge (black); M3 × 4 mm for stand (black); M3 × 6 mm for back cover (black); M3 × 6 mm for hinge (black).
- How long are the screws in HP M24fw?
- The records range from 4 to 6 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 HP M24fw?
- 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 HP M24fw?
- TechSpareWarehouse (our own store) lists M3 x 4mm and M3 x 6mm, which match lengths in the records above.