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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.

ThreadLengthPitchHeadDriveWhere it goesStatus
M410–12 mm0.7 mmPan headTorx T20M4 x 10mm pan-head tapping chassis screw and Torx T20 M4 x 10 and M4 x 12 screw-kit itemsConfirmed

Fitment records and sources

M410-12mmconfirmed

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

  1. Printers and POS terminals often use self-tapping screws into plastic; re-use the original thread path instead of cutting a new one.
  2. 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.
  3. 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.
  4. Length: for pan head screws, measure from under the head to the tip (countersunk heads are the exception: they are measured overall).
  5. The records span 10–12 mm, which means different positions take different lengths — match each hole to its own screw.
  6. 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.
  7. 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.

Pitch gauge · Screw size finder · Torque guide

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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The same screw also fits

Devices whose records share a thread with HP Color LaserJet 8500 / 8500N / 8500DN, closest length match first.

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.