HP Color LaserJet 8500 / 8500N / 8500DN screw size
M4 · 10 to 12 mm long
The screws used on HP Color LaserJet 8500 / 8500N / 8500DN are M4 in lengths from 10 to 12 mm.
It is listed for M4 x 10mm pan-head tapping chassis screw and Torx T20 M4 x 10 and M4 x 12 screw-kit items.
Head and drive, as the source states them: pan head and Torx T20 drive.
This entry is marked confirmed and comes from laserexpressinc.com.
M4 means a 4 mm nominal diameter with a 0.7 mm thread pitch. Imperial look-alike: #8-32 (4.17 mm) — the standard US PC/rack screw, close but not the same.
HP Color LaserJet 8500 / 8500N / 8500DN 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 |
|---|---|---|---|---|---|---|
| M4 | 10–12 mm | 0.7 mm | Pan head | Torx T20 | M4 x 10mm pan-head tapping chassis screw and Torx T20 M4 x 10 and M4 x 12 screw-kit items | Confirmed |
Fitment records and sources
M4 x 10mm pan-head tapping chassis screw and Torx T20 M4 x 10 and M4 x 12 screw-kit items
pitch 0.7 mm · tap 3.3 mm · clearance 4.5 mm · PH2 / Torx T20
How to check the screw before you buy
- Printers and POS terminals often use self-tapping screws into plastic; re-use the original thread path instead of cutting a new one.
- Diameter: across the threads an M4 screw measures about 4 mm with calipers (usually a hair under). If yours measures noticeably more or less, it is a different thread.
- Pitch: 0.7 mm from one thread crest to the next (14.29 crests per centimetre). A thread pitch gauge or the pitch-gauge tool settles it in seconds.
- Length: for pan head screws, measure from under the head to the tip (countersunk heads are the exception: they are measured overall).
- The records span 10–12 mm, which means different positions take different lengths — match each hole to its own screw.
- Driver: the source names a Torx T20 drive. For comparison, standard M4 heads take PH2 (Phillips) or T20 (Torx), or a 3 mm hex key.
- Tightening: no device-specific torque is published in these records. The site's general figure for M4 is about 2.0-3.0 N·m into metal threads and 0.8-1.4 N·m into plastic bosses; snug it up and stop.
Common mix-ups with M4
- Some rackmount KVM switch kits pair M4x10 bracket-to-rack screws with M3.2x4.5 bracket-to-chassis screws (non-standard M3.2, not a true M3), so kits are not fully interchangeable with generic M3/M4 hardware.
- Most HVAC chassis hardware in US-market units is imperial; metric shows up mainly on European-made components.
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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M4 x 12mm Black Wafer Head Chainsaw & Cut-off Saw Screws for STIHL MS 460, MS 362, TS480i & TS500i (IS-M4x12) – 10-Pack Replacement
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M4 x 12mm Black Wafer Head Monitor VESA, Neck & Stand Screws for Dell UltraSharp U4320Q & Sceptre Monitors – 8-Pack Replacement
$5.49Choose size
More in Printers, POS & Office
The same screw also fits
Devices whose records share a thread with HP Color LaserJet 8500 / 8500N / 8500DN, closest length match first.
- Grindex Mega Inox submersible pump (water treatment/wastewater pump) terminal box also M4 × 10 mm
- HP Color LaserJet 8500 2000-sheet input unit also M4 × 10–12 mm
- Diebold Opteva ATM cassette screw also M4 × 10–12 mm
- Brother DCP-8110D laser printer also M4 × 12 mm
- NCR ATM repairing components screw also M4 × 10 mm
- HP LaserJet 9000/9040/9050 series printer also M4 × 10 mm
- Rexel S16 paper shredder also M4 × 12 mm
- Brother HL-2170W laser printer also M4 × 12 mm
Questions about HP Color LaserJet 8500 / 8500N / 8500DN screws
- What size screw does HP Color LaserJet 8500 / 8500N / 8500DN use?
- M4 × 10–12 mm for M4 x 10mm pan-head tapping chassis screw and Torx T20 M4 x 10 and M4 x 12 screw-kit items.
- How long are the screws in HP Color LaserJet 8500 / 8500N / 8500DN?
- The records range from 10 to 12 mm depending on the position, so match each screw to its own hole.
- What is the thread pitch of an M4 screw?
- 0.7 mm (coarse), which is the standard pitch for M4 machine screws; a 0.5 mm fine pitch exists but is uncommon. The tap drill is 3.3 mm and the normal clearance hole is 4.5 mm.
- What screwdriver do I need for HP Color LaserJet 8500 / 8500N / 8500DN?
- The source lists a Torx T20 drive. Standard M4 heads otherwise take PH2 (Phillips) or T20 (Torx), or a 3 mm hex key.
- Can I use an imperial screw instead of M4?
- No. Imperial look-alike: #8-32 (4.17 mm) — the standard US PC/rack screw, close but not the same. Use a true M4 screw so it does not cross-thread or strip the hole.



