What size screw does Desktop motherboard M.2 standoff (2230 / 2242) use?

M2 × 3 mm for the standard screw into the raised M.2 standoff.

How long are the screws in Desktop motherboard M.2 standoff (2230 / 2242)?

The record gives 3 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 screw?

0.4 mm (coarse), which is the standard pitch for M2 machine screws; a 0.25 mm fine pitch exists but is uncommon. The tap drill is 1.6 mm and the normal clearance hole is 2.4 mm.

What screwdriver do I need for Desktop motherboard M.2 standoff (2230 / 2242)?

The sources do not name the drive. For M2, Phillips heads normally take PH0 and Torx heads T6; socket heads take a 1.5 mm hex key.

Can I use an imperial screw instead of M2?

No. Imperial look-alike: #2-56 UNC (2.18 mm) is close but not interchangeable. Use a true M2 screw so it does not cross-thread or strip the hole.

Where can I buy replacement screws for Desktop motherboard M.2 standoff (2230 / 2242)?

TechSpareWarehouse (our own store) lists M2 x 3mm, which matches the length in the records above.

Desktop motherboard M.2 standoff (2230 / 2242) screw size

M2 · 3 mm long

Desktop motherboard M.2 standoff (2230 / 2242) takes M2 metric screws, 3 mm long.

It is listed for the standard screw into the raised M.2 standoff.

This entry is marked confirmed and comes from sunbeamtech.com.

An M2 screw is 2 mm in diameter with a 0.4 mm pitch, tapped with a 1.6 mm drill; imperial look-alike: #2-56 UNC (2.18 mm) is close but not interchangeable.

Desktop motherboard M.2 standoff (2230 / 2242) 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	3 mm	0.4 mm	not stated	not stated	the standard screw into the raised M.2 standoff	Confirmed

Fitment records and sources

M23mmconfirmed

the standard screw into the raised M.2 standoff

pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6

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 screw measures about 2 mm with calipers (usually a hair under). If yours measures noticeably more or less, it is a different thread.
Pitch: 0.4 mm from one thread crest to the next (25 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 3 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 heads take PH0 for Phillips and T6 for Torx, and a 1.5 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 M2 is about 25-40 N·cm into metal threads and 12-20 N·cm into plastic bosses; snug it up and stop.

Common mix-ups with M2

M.2 SSD screw length must match the standoff position (2230/2242/2260/2280/22110) or the drive won't clamp.
The standard M.2 SSD screw is M2 x 3mm, but some laptops and handhelds use non-standard lengths or head shapes.

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 Desktop motherboard M.2 standoff (2230 / 2242), closest length match first.

Lenovo ThinkPad X61 also M2 × 3 mm
Lenovo ThinkPad E470 also M2 × 3 mm
Lenovo ThinkPad E535 also M2 × 3 mm
Lenovo ThinkPad E575 also M2 × 3 mm
Lenovo ThinkPad E14 Gen 3 also M2 × 3 mm
Lenovo 300e Chromebook 2nd Gen MTK also M2 × 3 mm
Acer Aspire 5942G also M2 × 3 mm
Acer Aspire 5940G also M2 × 3 mm

Questions about Desktop motherboard M.2 standoff (2230 / 2242) screws

What size screw does Desktop motherboard M.2 standoff (2230 / 2242) use?: M2 × 3 mm for the standard screw into the raised M.2 standoff.
How long are the screws in Desktop motherboard M.2 standoff (2230 / 2242)?: The record gives 3 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 screw?: 0.4 mm (coarse), which is the standard pitch for M2 machine screws; a 0.25 mm fine pitch exists but is uncommon. The tap drill is 1.6 mm and the normal clearance hole is 2.4 mm.
What screwdriver do I need for Desktop motherboard M.2 standoff (2230 / 2242)?: The sources do not name the drive. For M2, Phillips heads normally take PH0 and Torx heads T6; socket heads take a 1.5 mm hex key.
Can I use an imperial screw instead of M2?: No. Imperial look-alike: #2-56 UNC (2.18 mm) is close but not interchangeable. Use a true M2 screw so it does not cross-thread or strip the hole.
Where can I buy replacement screws for Desktop motherboard M.2 standoff (2230 / 2242)?: TechSpareWarehouse (our own store) lists M2 x 3mm, which matches the length in the records above.

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