HP 250R G9 / 256R G9 screw size
M2 / M2.5 · 3.5 to 8 mm long
Our records put HP 250R G9 / 256R G9 on M2 and M2.5 screws in lengths from 3.5 to 8 mm.
There are 4 separate fitment records for it, including bottom cover screws (2x) (M2), chassis feet screws (4x) (M2.5) and display assembly retention screws (4x) (M2.5), plus 1 more in the table below.
4 of the 4 records are marked confirmed, drawn from 1 source (kaas.hpcloud.hp.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.
HP 250R G9 / 256R G9 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 | 4 mm | 0.4 mm | not stated | not stated | bottom cover screws (2x) | Confirmed |
| M2.5 | 8 mm | 0.45 mm | not stated | not stated | chassis feet screws (4x) | Confirmed |
| M2.5 | 6 mm | 0.45 mm | not stated | not stated | display assembly retention screws (4x) | Confirmed |
| M2.5 | 3.5 mm | 0.45 mm | not stated | not stated | display hinge, bottom (3x per hinge) | Confirmed |
Fitment records and sources
bottom cover screws (2x)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
chassis feet screws (4x)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
display assembly retention screws (4x)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
display hinge, bottom (3x per hinge)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
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). This device also uses M2.5, so measure each screw rather than assuming they match.
- 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 records span 3.5–8 mm, which means different positions take different lengths — match each hole to its own screw.
- 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 / M2.5
- The standard M.2 SSD screw is M2 x 3mm, but some laptops and handhelds use non-standard lengths or head shapes.
- Xbox Series X internal chassis screws are M3, not M2 (confirmed on iFixit) — a widespread misconception.
- M2.5 pitch is 0.45mm vs M3's 0.5mm and M2's 0.4mm — forcing the wrong one strips plastic bosses instantly.
- M2.5 and M3 look the same to the naked eye — you need calipers on the shank to tell them apart.
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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M2 x 4mm Phillips Wafer Head Machine Screws Black 50-Pack Laptop SSD Repair
$4.49 each · min. 2
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M2 x 4mm Screws for Dell Latitude 5530 SSD Type-C Bracket 10-Pack Black
$4.99
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M2.5 x 8mm Screws for Retevis RT27 Radio Belt Clip 10-Pack Black Phillips
$4.99 -
M2.5 x 8mm Screws for Raspberry Pi 5 Case and PoE HAT 10-Pack Black
$4.99 -
M2.5 x 6mm Laptop Motherboard Replacement Screws Wafer Head 10-Pack Black
$4.99 -
10x M2.5 x 6mm Phillips Screws for Lenovo ThinkPad X131e Chromebook LCD Hinge
$4.99
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ASUS ROG Strix G15 G513R Replacement Screws Sold Individually – M1.6 x 3mm, M2 x 2.5mm, M2 x 3mm, M2.5 x 6mm Phillips Wafer Head, Black
$0.10Choose size
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ASUS ROG Strix G17 G713 Replacement Screws Sold Individually – M1.6 x 3mm, M2 x 2.5mm, M2 x 3mm, M2.5 x 6mm Phillips Wafer Head, Black
$0.10Choose size
More in Laptops & PCs
The same screw also fits
Devices whose records share a thread with HP 250R G9 / 256R G9, closest length match first.
- Dell Pro Max 18 Plus MB18250 also M2 × 4 mm
- HP nx6120 also M2 × 4 mm
- Lenovo G480 also M2.5 × 8 mm
- Lenovo ideapad 510-15IKB also M2.5 × 6 mm
- Toshiba Satellite 2400 also M2 × 4 mm
- Lenovo ThinkPad S431 also M2 × 4 mm
- Lenovo V110-15ISK also M2 × 4 mm
- Lenovo ThinkPad S31 also M2 × 4 mm
Questions about HP 250R G9 / 256R G9 screws
- What size screw does HP 250R G9 / 256R G9 use?
- M2 × 4 mm for bottom cover screws (2x); M2.5 × 8 mm for chassis feet screws (4x); M2.5 × 6 mm for display assembly retention screws (4x); M2.5 × 3.5 mm for display hinge, bottom (3x per hinge).
- How long are the screws in HP 250R G9 / 256R G9?
- The records range from 3.5 to 8 mm depending on the position, so match each screw to its own hole.
- 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 HP 250R G9 / 256R G9?
- 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 HP 250R G9 / 256R G9?
- TechSpareWarehouse (our own store) lists M2 x 4mm, M2.5 x 8mm and M2.5 x 6mm, which match lengths in the records above.