HP ProBook 6465b screw size
M2 / M2.5 / M3 · 3 to 8 mm long
The screws used on HP ProBook 6465b are M2, M2.5 and M3 in lengths from 3 to 8 mm.
There are 16 separate fitment records for it, including base cover (qty 2, pan, Phillips) (M2), optical drive (qty 3, Phillips) (M2) and system board (qty 1, Phillips) (M2), plus 13 more in the table below.
Head and drive, as the sources state them: pan head and Phillips and Torx drives.
16 of the 16 records are marked confirmed, drawn from 1 source (h10032.www1.hp.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.
HP ProBook 6465b 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 | Pan head | Phillips | Base cover (qty 2, pan, Phillips) | Confirmed |
| M2 | 3 mm | 0.4 mm | not stated | Phillips | Optical drive (qty 3, Phillips) | Confirmed |
| M2 | 3 mm | 0.4 mm | not stated | Phillips | System board (qty 1, Phillips) | Confirmed |
| M2 | 3 mm | 0.4 mm | not stated | Phillips | Unspecified (qty 2, Phillips) | Confirmed |
| M2 | 3 mm | 0.4 mm | not stated | Phillips | Wireless card (qty 2, Phillips) | Confirmed |
| M2 | 4 mm | 0.4 mm | not stated | Phillips | Card reader (qty 1, broadhead, Phillips) | Confirmed |
| M2 | 4 mm | 0.4 mm | not stated | Phillips | Display (qty 2, broadhead, Phillips) | Confirmed |
| M2 | 4 mm | 0.4 mm | not stated | Phillips | Unspecified (qty 4, Phillips) | Confirmed |
| M2 | 5 mm | 0.4 mm | not stated | Phillips | Speaker (qty 2, Phillips) | Confirmed |
| M2.5 | 3 mm | 0.45 mm | not stated | Phillips | Hinge (qty 4, Phillips) | Confirmed |
| M2.5 | 4.5 mm | 0.45 mm | not stated | Phillips | Base cover (qty 2, Phillips) | Confirmed |
| M2.5 | 4.5 mm | 0.45 mm | not stated | Phillips | Display (qty 2, Phillips) | Confirmed |
| M2.5 | 4.5 mm | 0.45 mm | not stated | Phillips | System board (qty 2, Phillips) | Confirmed |
| M2.5 | 5 mm | 0.45 mm | Pan head | Phillips | Display (qty 4, pan, Phillips) | Confirmed |
| M2.5 | 8 mm | 0.45 mm | not stated | Torx | Base cover (qty 8, Torx) | Confirmed |
| M3 | 5 mm | 0.5 mm | not stated | Phillips | Hard drive (qty 2, Phillips) | Confirmed |
Fitment records and sources
Base cover (qty 2, pan, Phillips)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Optical drive (qty 3, Phillips)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
System board (qty 1, Phillips)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Unspecified (qty 2, Phillips)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Wireless card (qty 2, Phillips)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Card reader (qty 1, broadhead, Phillips)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Display (qty 2, broadhead, Phillips)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Unspecified (qty 4, Phillips)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Speaker (qty 2, Phillips)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Hinge (qty 4, Phillips)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Base cover (qty 2, Phillips)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Display (qty 2, Phillips)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
System board (qty 2, Phillips)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Display (qty 4, pan, Phillips)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Base cover (qty 8, Torx)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Hard drive (qty 2, Phillips)
pitch 0.5 mm · tap 2.5 mm · clearance 3.4 mm · PH1 / Torx T10
How to check the screw before you buy
- Laptop covers and brackets often mix two or three lengths of the same thread, so lay the screws out in the order they came out (a magnetic mat or a sheet of paper with the hole pattern drawn on it works).
- Diameter: across the threads an M2 screw measures about 2 mm with calipers (usually a hair under). This device also uses M2.5 / M3, 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: for pan head screws, measure from under the head to the tip (countersunk heads are the exception: they are measured overall).
- The records span 3–8 mm, which means different positions take different lengths — match each hole to its own screw.
- Driver: the source names a Phillips drive. For comparison, standard M2 heads take PH0 (Phillips) or T6 (Torx), or a 1.5 mm hex key.
- 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 / M3
- The standard M.2 SSD screw is M2 x 3mm, but some laptops and handhelds use non-standard lengths or head shapes.
- M2.5 pitch is 0.45mm vs M3's 0.5mm and M2's 0.4mm — forcing the wrong one strips plastic bosses instantly.
- PC cases mix M3 (fans, optical and 2.5in drives) with imperial 6-32 (3.5in drives, motherboard standoffs) - don't force one into the other.
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.
-
M2 x 3mm Screws for Dell XPS 13 9340 Base Cover SSD Shield 10-Pack Black
$4.99 -
10x M2 x 3mm Phillips Screws for Lenovo ThinkPad X131e Chromebook WiFi SSD
$4.99 -
M2 x 4mm Phillips Wafer Head Machine Screws Black 50-Pack Laptop SSD Repair
$4.49 each · min. 2
-
M2 x 4mm Screws for Dell Latitude 5530 SSD Type-C Bracket 10-Pack Black
$4.99 -
M2 x 5mm Replacement Bottom Case Screws for Dell Inspiron 3535 Laptop 10-Pack
$4.99 -
M2 x 5mm Phillips Wafer Head Screw for Dell G16 7630 Gaming Laptop Repair - Pack of 100 Black
$7.99 -
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 -
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 ProBook 6465b, closest length match first.
- Dell Latitude 7490 also M2 × 3 mm
- Dell Latitude 100l also M2 × 3 mm
- Lenovo ideapad 300-14IBR also M2 × 3 mm
- Lenovo IdeaPad 110-14AST also M2 × 4 mm
- Acer Aspire 5942G also M2 × 3 mm
- Lenovo 300e Chromebook 2nd Gen MTK also M2 × 3 mm
- Acer Aspire 5940G also M2 × 3 mm
- Lenovo ThinkPad E14 Gen 4 also M2 × 3 mm
Questions about HP ProBook 6465b screws
- What size screw does HP ProBook 6465b use?
- M2 × 3 mm for base cover (qty 2, pan, Phillips); M2 × 3 mm for optical drive (qty 3, Phillips); M2 × 3 mm for system board (qty 1, Phillips); M2 × 3 mm for unspecified (qty 2, Phillips); M2 × 3 mm for wireless card (qty 2, Phillips); M2 × 4 mm for card reader (qty 1, broadhead, Phillips); M2 × 4 mm for display (qty 2, broadhead, Phillips); M2 × 4 mm for unspecified (qty 4, Phillips); M2 × 5 mm for speaker (qty 2, Phillips); M2.5 × 3 mm for hinge (qty 4, Phillips); M2.5 × 4.5 mm for base cover (qty 2, Phillips); M2.5 × 4.5 mm for display (qty 2, Phillips); M2.5 × 4.5 mm for system board (qty 2, Phillips); M2.5 × 5 mm for display (qty 4, pan, Phillips); M2.5 × 8 mm for base cover (qty 8, Torx).
- How long are the screws in HP ProBook 6465b?
- The records range from 3 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 ProBook 6465b?
- The source lists a Phillips and Torx drive. Standard M2 heads otherwise take PH0 (Phillips) or T6 (Torx), or 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 ProBook 6465b?
- TechSpareWarehouse (our own store) lists M2 x 3mm, M2 x 4mm and M2 x 5mm, which match lengths in the records above.




