Steam Deck (LCD) internal machine screw (Type 3) screw size
M2 · 3.5 mm long
Our records put Steam Deck (LCD) internal machine screw (Type 3) on M2 screws, 3.5 mm long.
The record covers 2mm diameter, 0.4mm pitch machine screw used internally.
This entry is marked confirmed and comes from ifixit.com.
M2 means a 2 mm nominal diameter with a 0.4 mm thread pitch. Imperial look-alike: #2-56 UNC (2.18 mm) is close but not interchangeable.
Steam Deck (LCD) internal machine screw (Type 3) 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 | 3.5 mm | 0.4 mm | not stated | not stated | 2mm diameter, 0.4mm pitch machine screw used internally | Confirmed |
Fitment records and sources
2mm diameter, 0.4mm pitch machine screw used internally
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
How to check the screw before you buy
- Over-long screws in phones are a known cause of damaged boards (Apple's 'long screw damage'), so never swap positions.
- 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 3.5 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
- Packaging/labeling equipment manuals (e.g., cab print-and-apply applicators) mix M2 through M6 fasteners across a single machine for very different assemblies (sensors vs. frame vs. drive) — do not generalize one thread size to 'the machine' as a whole; cite the specific subassembly.
- M2 (2.00mm, 0.4mm pitch) is NOT the same as #2-56 UNC (2.18mm) — close enough to cross-thread and strip if forced.
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Devices whose records share a thread with Steam Deck (LCD) internal machine screw (Type 3), closest length match first.
- Valve Steam Deck (LCD) also M2 × 3.5 mm
- Nintendo Switch OLED motherboard also M2 × 3.5 mm
- Nintendo Switch mainboard also M2 × 3.5 mm
- ROG Ally internal chassis also M2 × 3.5 mm
- PS5 internal M.2 SSD retention screw also M2 × 3.5 mm
- PS5 SSD expansion slot also M2 × 3.5 mm
- Mid-range Android tablet frames also M2 × 3.5 mm
- Kindle Paperwhite internal boards also M2 × 3.5 mm
Questions about Steam Deck (LCD) internal machine screw (Type 3) screws
- What size screw does Steam Deck (LCD) internal machine screw (Type 3) use?
- M2 × 3.5 mm for 2mm diameter, 0.4mm pitch machine screw used internally.
- How long are the screws in Steam Deck (LCD) internal machine screw (Type 3)?
- The record gives 3.5 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 Steam Deck (LCD) internal machine screw (Type 3)?
- 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.