HP ZBook 8 G1ak 14 (ZBook 8 G1a family; G1ah screw size
M1.6 / M2 / M2.5 · 2 to 5 mm long
Our records put HP ZBook 8 G1ak 14 (ZBook 8 G1a family; G1ah on M1.6, M2 and M2.5 screws in lengths from 2 to 5 mm.
There are 9 separate fitment records for it, including touchpad (qty 7, Phillips) (M1.6), card reader (qty 3, Phillips) (M2) and power button (qty 1, Phillips) (M2), plus 6 more in the table below.
Head and drive, as the sources state them: Phillips drive.
9 of the 9 records are marked confirmed, drawn from 1 source (kaas.hpcloud.hp.com).
For reference, M1.6 is 1.6 mm across the threads at 0.35 mm pitch. The imperial size people confuse it with: #1-72 UNF (1.85 mm) is larger; there is no true imperial equivalent.
HP ZBook 8 G1ak 14 (ZBook 8 G1a family; G1ah 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 |
|---|---|---|---|---|---|---|
| M1.6 | 2 mm | 0.35 mm | not stated | Phillips | Touchpad (qty 7, Phillips) | Confirmed |
| M2 | 2 mm | 0.4 mm | not stated | Phillips | Card reader (qty 3, Phillips) | Confirmed |
| M2 | 2 mm | 0.4 mm | not stated | Phillips | Power button (qty 1, Phillips) | Confirmed |
| M2 | 2 mm | 0.4 mm | not stated | Phillips | Speaker (qty 3, Phillips) | Confirmed |
| M2 | 2.5 mm | 0.4 mm | not stated | Phillips | SSD (qty 1, Phillips) | Confirmed |
| M2 | 2.5 mm | 0.4 mm | not stated | Phillips | Wireless card (qty 1, Phillips) | Confirmed |
| M2 | 4 mm | 0.4 mm | not stated | Phillips | Keyboard (qty 29, Phillips) | Confirmed |
| M2 | 5 mm | 0.4 mm | not stated | Phillips | System board (qty 8, Phillips) | Confirmed |
| M2.5 | 5 mm | 0.45 mm | not stated | Phillips | Display (qty 1, Phillips) | Confirmed |
Fitment records and sources
Touchpad (qty 7, Phillips)
pitch 0.35 mm · tap 1.25 mm · clearance 1.8 mm · PH00 / Torx T4–T5
Card reader (qty 3, Phillips)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Power button (qty 1, Phillips)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Speaker (qty 3, Phillips)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
SSD (qty 1, Phillips)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Wireless card (qty 1, Phillips)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Keyboard (qty 29, Phillips)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
System board (qty 8, Phillips)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Display (qty 1, Phillips)
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 M1.6 screw measures about 1.6 mm with calipers (usually a hair under). This device also uses M2 / M2.5, so measure each screw rather than assuming they match.
- Pitch: 0.35 mm from one thread crest to the next (28.57 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 2–5 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 M1.6 heads take PH00 (Phillips) or T4–T5 (Torx), or a 1.5 mm hex key.
- Tightening: no device-specific torque is published in these records. The site's general figure for M1.6 is about 12-20 N·cm into metal threads and 6-10 N·cm into plastic bosses; snug it up and stop.
Common mix-ups with M1.6 / 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.
- M2.5 pitch is 0.45mm vs M3's 0.5mm and M2's 0.4mm — forcing the wrong one strips plastic bosses instantly.
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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More in Laptops & PCs
The same screw also fits
Devices whose records share a thread with HP ZBook 8 G1ak 14 (ZBook 8 G1a family; G1ah, closest length match first.
- Lenovo ThinkPad S31 also M2 × 2.5 mm
- Lenovo V110-15ISK also M2 × 4 mm
- HP EliteBook 8440w also M2 × 2 mm
- Lenovo ThinkPad T14s Gen 6 Snapdragon also M2 × 2 mm
- Lenovo ThinkPad S431 also M2 × 2 mm
- Toshiba Satellite 2400 also M2 × 4 mm
- Lenovo G480 also M2 × 2 mm
- Lenovo Z710 also M2 × 2 mm
Questions about HP ZBook 8 G1ak 14 (ZBook 8 G1a family; G1ah screws
- What size screw does HP ZBook 8 G1ak 14 (ZBook 8 G1a family; G1ah use?
- M1.6 × 2 mm for touchpad (qty 7, Phillips); M2 × 2 mm for card reader (qty 3, Phillips); M2 × 2 mm for power button (qty 1, Phillips); M2 × 2 mm for speaker (qty 3, Phillips); M2 × 2.5 mm for SSD (qty 1, Phillips); M2 × 2.5 mm for wireless card (qty 1, Phillips); M2 × 4 mm for keyboard (qty 29, Phillips); M2 × 5 mm for system board (qty 8, Phillips); M2.5 × 5 mm for display (qty 1, Phillips).
- How long are the screws in HP ZBook 8 G1ak 14 (ZBook 8 G1a family; G1ah?
- The records range from 2 to 5 mm depending on the position, so match each screw to its own hole.
- What is the thread pitch of an M1.6 screw?
- 0.35 mm (coarse), which is the standard pitch for M1.6 machine screws; a 0.2 mm fine pitch exists but is uncommon. The tap drill is 1.25 mm and the normal clearance hole is 1.8 mm.
- What screwdriver do I need for HP ZBook 8 G1ak 14 (ZBook 8 G1a family; G1ah?
- The source lists a Phillips drive. Standard M1.6 heads otherwise take PH00 (Phillips) or T4–T5 (Torx), or a 1.5 mm hex key.
- Can I use an imperial screw instead of M1.6?
- No. Imperial look-alike: #1-72 UNF (1.85 mm) is larger; there is no true imperial equivalent. Use a true M1.6 screw so it does not cross-thread or strip the hole.
- Where can I buy replacement screws for HP ZBook 8 G1ak 14 (ZBook 8 G1a family; G1ah?
- TechSpareWarehouse (our own store) lists M2 x 2mm, M2 x 2.5mm and M2 x 4mm, which match lengths in the records above.