What size screw does Toshiba Chromebook 2 bottom cover screw use?

M2.5 × 6 mm for community-confirmed replacement size.

How long are the screws in Toshiba Chromebook 2 bottom cover screw?

The record gives 6 mm. Measure the original from under the head (overall for a countersunk head) to confirm before ordering.

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 Toshiba Chromebook 2 bottom cover screw?

The sources do not name the drive. For M2.5, Phillips heads normally take PH1 and Torx heads T8; socket heads take 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 Toshiba Chromebook 2 bottom cover screw?

TechSpareWarehouse (our own store) lists M2.5 x 6mm, which matches the length in the records above.

Toshiba Chromebook 2 bottom cover screw screw size

M2.5 · 6 mm long

Toshiba Chromebook 2 bottom cover screw takes M2.5 metric screws, 6 mm long.

It is listed for community-confirmed replacement size.

This entry is marked likely 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.

Toshiba Chromebook 2 bottom cover screw 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
M2.5	6 mm	0.45 mm	not stated	not stated	Community-confirmed replacement size	Likely

Fitment records and sources

M2.56.0mmlikely

Community-confirmed replacement size

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

Source

How to check the screw before you buy

A screw that is even 1 mm too long in a laptop base can push into the keyboard, battery or a board trace, so match the length position by position.
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.
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.
Length: measure from under the head to the tip for pan, button, wafer and cap heads; countersunk (flat) heads are measured overall.
The record states 6 mm. Going longer risks bottoming out or touching parts behind the hole; going shorter loses thread engagement.
Driver: the source does not name the drive. Standard M2.5 heads take PH1 for Phillips and T8 for Torx, and a 2 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 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

Dell/HP/Lenovo manuals often list screws only by torque or head shape, so community teardowns are needed for diameter.
In dental implantology, M2.5 appears as an explicit, standardized internal screw thread for implant abutment/prosthetic screw retrieval and repair taps (confirmed via Nobel Biocare), distinct from generic 'dental screw' marketing claims that lack thread specification.

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 Toshiba Chromebook 2 bottom cover screw, closest length match first.

Dell Latitude 3520 also M2.5 × 6 mm
Acer Aspire 4315 also M2.5 × 6 mm
Lenovo ThinkPad T530i also M2.5 × 6 mm
Lenovo ideapad 310 Touch-15IKB also M2.5 × 6 mm
Lenovo IdeaPad P500 also M2.5 × 6 mm
HP EliteBook 2540p also M2.5 × 6 mm
Lenovo ThinkPad T510i also M2.5 × 6 mm
HP Pavilion DV9200 also M2.5 × 6 mm

Questions about Toshiba Chromebook 2 bottom cover screw screws

What size screw does Toshiba Chromebook 2 bottom cover screw use?: M2.5 × 6 mm for community-confirmed replacement size.
How long are the screws in Toshiba Chromebook 2 bottom cover screw?: The record gives 6 mm. Measure the original from under the head (overall for a countersunk head) to confirm before ordering.
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 Toshiba Chromebook 2 bottom cover screw?: The sources do not name the drive. For M2.5, Phillips heads normally take PH1 and Torx heads T8; socket heads take 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 Toshiba Chromebook 2 bottom cover screw?: TechSpareWarehouse (our own store) lists M2.5 x 6mm, which matches the length in the records above.

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