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Xbox Series X drive bay and PSU screw size

M2.5 · 5 to 8 mm long

If you are replacing a screw on Xbox Series X drive bay and PSU, the thread is M2.5 in lengths from 5 to 8 mm.

The record covers torx screws for internal component mounting.

Head and drive, as the source states them: Torx drive.

This entry is marked reported and comes from ifixit.com.

For reference, M2.5 is 2.5 mm across the threads at 0.45 mm pitch. The imperial size people confuse it with: #3-48 / #4-40 (2.51 / 2.84 mm) — #4-40 is the common US stand-in and it will NOT thread in.

Xbox Series X drive bay and PSU 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
M2.55–8 mm0.45 mmnot statedTorxTorx screws for internal component mountingReported

Fitment records and sources

M2.55-8mmreported

Torx screws for internal component mounting

pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8

How to check the screw before you buy

  1. Phone and wearable screws are tiny and often differ by fractions of a millimetre between positions; keep each one next to the hole it came from.
  2. Diameter: across the threads an M2.5 screw measures about 2.5 mm with calipers (usually a hair under). If yours measures noticeably more or less, it is a different thread.
  3. Pitch: 0.45 mm from one thread crest to the next (22.22 crests per centimetre). A thread pitch gauge or the pitch-gauge tool settles it in seconds.
  4. Length: measure from under the head to the tip for pan, button, wafer and cap heads; countersunk (flat) heads are measured overall.
  5. The records span 5–8 mm, which means different positions take different lengths — match each hole to its own screw.
  6. Driver: the source names a Torx drive. For comparison, standard M2.5 heads take PH1 (Phillips) or T8 (Torx), or a 2 mm hex key.
  7. Tightening: no device-specific torque is published in these records. The site's general figure for M2.5 is about 45-70 N·cm into metal threads and 20-35 N·cm into plastic bosses; snug it up and stop.

Common mix-ups with M2.5

  • M2.5 and M3 look the same to the naked eye — you need calipers on the shank to tell them apart.
  • M2.5 pitch is 0.45mm vs M3's 0.5mm and M2's 0.4mm — forcing the wrong one strips plastic bosses instantly.

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 Xbox Series X drive bay and PSU, closest length match first.

Questions about Xbox Series X drive bay and PSU screws

What size screw does Xbox Series X drive bay and PSU use?
M2.5 × 5–8 mm for torx screws for internal component mounting.
How long are the screws in Xbox Series X drive bay and PSU?
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 M2.5 screw?
0.45 mm (coarse), which is the standard pitch for M2.5 machine screws; a 0.35 mm fine pitch exists but is uncommon. The tap drill is 2.05 mm and the normal clearance hole is 2.9 mm.
What screwdriver do I need for Xbox Series X drive bay and PSU?
The source lists a Torx drive. Standard M2.5 heads otherwise take PH1 (Phillips) or T8 (Torx), or a 2 mm hex key.
Can I use an imperial screw instead of M2.5?
No. Imperial look-alike: #3-48 / #4-40 (2.51 / 2.84 mm) — #4-40 is the common US stand-in and it will NOT thread in. Use a true M2.5 screw so it does not cross-thread or strip the hole.
Where can I buy replacement screws for Xbox Series X drive bay and PSU?
TechSpareWarehouse (our own store) lists M2.5 x 5mm, M2.5 x 6mm and M2.5 x 8mm, which match lengths in the records above.