Lenovo ThinkPad 770 screw size
M1.6 / M2 / M2.5 / M3 · 1.7 to 25 mm long
Our records put Lenovo ThinkPad 770 on M1.6, M2, M2.5 and M3 screws in lengths from 1.7 to 25 mm.
There are 72 separate fitment records for it, including screw kit (qty 2, flat) (M1.6), unspecified (qty 2, flat, black) (M1.6) and optical drive (qty 4) (M2), plus 69 more in the table below.
Head and drive, as the sources state them: pan head.
72 of the 72 records are marked confirmed, drawn from 2 sources (thinkpad-manuals.retropc.se and tim.id.au).
An M1.6 screw is 1.6 mm in diameter with a 0.35 mm pitch, tapped with a 1.25 mm drill; imperial look-alike: #1-72 UNF (1.85 mm) is larger; there is no true imperial equivalent.
Lenovo ThinkPad 770 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 | 4 mm | 0.35 mm | not stated | not stated | Screw kit (qty 2, flat) | Confirmed |
| M1.6 | 4 mm | 0.35 mm | not stated | not stated | Unspecified (qty 2, flat, black)black finish | Confirmed |
| M2 | 1.7 mm | 0.4 mm | not stated | not stated | Optical drive (qty 4) | Confirmed |
| M2 | 10 mm | 0.4 mm | not stated | not stated | Heat sink (qty 3, yellow) | Confirmed |
| M2 | 10 mm | 0.4 mm | Pan head | not stated | Screw kit (qty 3, pan) | Confirmed |
| M2 | 10 mm | 0.4 mm | not stated | not stated | Unspecified (qty 3, yellow) | Confirmed |
| M2 | 14 mm | 0.4 mm | not stated | not stated | Card reader (qty 2, yellow) | Confirmed |
| M2 | 14 mm | 0.4 mm | Pan head | not stated | Screw kit (qty 5, pan) | Confirmed |
| M2 | 14 mm | 0.4 mm | not stated | not stated | Unspecified (qty 1) | Confirmed |
| M2 | 16 mm | 0.4 mm | not stated | not stated | Unspecified (qty 2) | Confirmed |
| M2 | 2.4 mm | 0.4 mm | not stated | not stated | Optical drive (qty 4) | Confirmed |
| M2 | 3.5 mm | 0.4 mm | not stated | not stated | Heat sink (qty 4, black)black finish | Confirmed |
| M2 | 3.7 mm | 0.4 mm | not stated | not stated | Display (qty 2) | Confirmed |
| M2 | 3.7 mm | 0.4 mm | not stated | not stated | Unspecified (qty 2, flat) | Confirmed |
| M2 | 4 mm | 0.4 mm | not stated | not stated | Hinge (qty 2) | Confirmed |
| M2 | 4 mm | 0.4 mm | not stated | not stated | Screw kit (qty 5) | Confirmed |
| M2 | 4 mm | 0.4 mm | not stated | not stated | Unspecified (qty 2) | Confirmed |
| M2 | 4.3 mm | 0.4 mm | not stated | not stated | Display (qty 2) | Confirmed |
| M2 | 4.3 mm | 0.4 mm | not stated | not stated | Display back cover (qty 6, flat) | Confirmed |
| M2 | 4.3 mm | 0.4 mm | not stated | not stated | Hinge (qty 4) | Confirmed |
| M2 | 5 mm | 0.4 mm | not stated | not stated | Display back cover (qty 2) | Confirmed |
| M2 | 6 mm | 0.4 mm | not stated | not stated | Base cover (qty 1) | Confirmed |
| M2 | 6 mm | 0.4 mm | not stated | not stated | Fan (qty 2) | Confirmed |
| M2 | 6 mm | 0.4 mm | not stated | not stated | Palm rest (qty 2, flat) | Confirmed |
| M2 | 6 mm | 0.4 mm | not stated | not stated | Unspecified (qty 1) | Confirmed |
| M2.5 | 14 mm | 0.45 mm | not stated | not stated | Screw kit (qty 5) | Confirmed |
| M2.5 | 14 mm | 0.45 mm | not stated | not stated | Unspecified (qty 1) | Confirmed |
| M2.5 | 25 mm | 0.45 mm | not stated | not stated | Keyboard (qty 1) | Confirmed |
| M2.5 | 3 mm | 0.45 mm | Pan head | not stated | Screw kit (qty 8, pan,flat) | Confirmed |
| M2.5 | 3 mm | 0.45 mm | not stated | not stated | Unspecified (qty 4, black)black finish | Confirmed |
| M2.5 | 4 mm | 0.45 mm | not stated | not stated | Card reader (qty 4, yellow) | Confirmed |
| M2.5 | 4 mm | 0.45 mm | not stated | not stated | Display (qty 4, yellow,black)black finish | Confirmed |
| M2.5 | 4 mm | 0.45 mm | not stated | not stated | Hinge (qty 4, yellow) | Confirmed |
| M2.5 | 4 mm | 0.45 mm | not stated | not stated | Keyboard (qty 4, flat, black,yellow)black finish | Confirmed |
| M2.5 | 4 mm | 0.45 mm | not stated | not stated | Palm rest (qty 4, flat, black)black finish | Confirmed |
| M2.5 | 4 mm | 0.45 mm | Pan head | not stated | Screw kit (qty 23, pan) | Confirmed |
| M2.5 | 4 mm | 0.45 mm | not stated | not stated | System board (qty 4, yellow) | Confirmed |
| M2.5 | 4 mm | 0.45 mm | not stated | not stated | Unspecified (qty 5, flat, yellow,black)black finish | Confirmed |
| M2.5 | 5 mm | 0.45 mm | not stated | not stated | Palm rest (qty 4, flat) | Confirmed |
| M2.5 | 5 mm | 0.45 mm | not stated | not stated | Unspecified (qty 2, flat) | Confirmed |
| M2.5 | 6 mm | 0.45 mm | not stated | not stated | Base cover (qty 1) | Confirmed |
| M2.5 | 6 mm | 0.45 mm | not stated | not stated | Battery (qty 2) | Confirmed |
| M2.5 | 6 mm | 0.45 mm | not stated | not stated | Display (qty 5, flat, black)black finish | Confirmed |
| M2.5 | 6 mm | 0.45 mm | not stated | not stated | Display back cover (qty 4, flat) | Confirmed |
| M2.5 | 6 mm | 0.45 mm | not stated | not stated | Fan (qty 2, black)black finish | Confirmed |
| M2.5 | 6 mm | 0.45 mm | not stated | not stated | Hard drive (qty 4) | Confirmed |
| M2.5 | 6 mm | 0.45 mm | not stated | not stated | Hinge (qty 2) | Confirmed |
| M2.5 | 6 mm | 0.45 mm | not stated | not stated | Keyboard (qty 4, black)black finish | Confirmed |
| M2.5 | 6 mm | 0.45 mm | not stated | not stated | Optical drive (qty 4, black)black finish | Confirmed |
| M2.5 | 6 mm | 0.45 mm | not stated | not stated | Palm rest (qty 2, flat) | Confirmed |
| M2.5 | 6 mm | 0.45 mm | Pan head | not stated | Screw kit (qty 29, pan) | Confirmed |
| M2.5 | 6 mm | 0.45 mm | not stated | not stated | System board (qty 4, black)black finish | Confirmed |
| M2.5 | 6 mm | 0.45 mm | not stated | not stated | Unspecified (qty 6, flat,hex, black)black finish | Confirmed |
| M2.5 | 8 mm | 0.45 mm | not stated | not stated | Display back cover (qty 4, flat) | Confirmed |
| M2.5 | 8 mm | 0.45 mm | not stated | not stated | Fan (qty 4, black)black finish | Confirmed |
| M2.5 | 8 mm | 0.45 mm | not stated | not stated | Keyboard (qty 4, black)black finish | Confirmed |
| M2.5 | 8 mm | 0.45 mm | not stated | not stated | Optical drive (qty 1) | Confirmed |
| M2.5 | 8 mm | 0.45 mm | not stated | not stated | Palm rest (qty 2, flat) | Confirmed |
| M2.5 | 8 mm | 0.45 mm | not stated | not stated | Screw kit (qty 10, flat) | Confirmed |
| M2.5 | 8 mm | 0.45 mm | not stated | not stated | System board (qty 3) | Confirmed |
| M2.5 | 8 mm | 0.45 mm | not stated | not stated | Unspecified (qty 3) | Confirmed |
| M2.5 | 9 mm | 0.45 mm | not stated | not stated | Display back cover (qty 4, flat) | Confirmed |
| M3 | 3 mm | 0.5 mm | not stated | not stated | Hard drive (qty 4) | Confirmed |
| M3 | 4 mm | 0.5 mm | not stated | not stated | Unspecified (qty 1) | Confirmed |
| M3 | 6 mm | 0.5 mm | not stated | not stated | Base cover (qty 5) | Confirmed |
| M3 | 6 mm | 0.5 mm | not stated | not stated | Bracket (qty 4) | Confirmed |
| M3 | 6 mm | 0.5 mm | not stated | not stated | Chassis/frame (qty 3) | Confirmed |
| M3 | 6 mm | 0.5 mm | not stated | not stated | Speaker (qty 1) | Confirmed |
| M3 | 6 mm | 0.5 mm | not stated | not stated | Unspecified (qty 4, flat, black)black finish | Confirmed |
| M3 | 8 mm | 0.5 mm | not stated | not stated | Base cover (qty 3) | Confirmed |
| M3 | 8 mm | 0.5 mm | not stated | not stated | Speaker (qty 4) | Confirmed |
| M3 | 8 mm | 0.5 mm | not stated | not stated | Unspecified (qty 3, flat,hex, black)black finish | Confirmed |
Fitment records and sources
Screw kit (qty 2, flat)
pitch 0.35 mm · tap 1.25 mm · clearance 1.8 mm · PH00 / Torx T4–T5
Unspecified (qty 2, flat, black)
pitch 0.35 mm · tap 1.25 mm · clearance 1.8 mm · PH00 / Torx T4–T5
Optical drive (qty 4)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Heat sink (qty 3, yellow)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Screw kit (qty 3, pan)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Unspecified (qty 3, yellow)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Card reader (qty 2, yellow)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Screw kit (qty 5, pan)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Unspecified (qty 1)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Unspecified (qty 2)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Optical drive (qty 4)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Heat sink (qty 4, black)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Display (qty 2)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Unspecified (qty 2, flat)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Hinge (qty 2)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Screw kit (qty 5)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Unspecified (qty 2)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Display (qty 2)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Display back cover (qty 6, flat)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Hinge (qty 4)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Display back cover (qty 2)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Base cover (qty 1)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Fan (qty 2)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Palm rest (qty 2, flat)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Unspecified (qty 1)
pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6
Screw kit (qty 5)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Unspecified (qty 1)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Keyboard (qty 1)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Screw kit (qty 8, pan,flat)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Unspecified (qty 4, black)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Card reader (qty 4, yellow)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Display (qty 4, yellow,black)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Hinge (qty 4, yellow)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Keyboard (qty 4, flat, black,yellow)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Palm rest (qty 4, flat, black)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Screw kit (qty 23, pan)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
System board (qty 4, yellow)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Unspecified (qty 5, flat, yellow,black)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Palm rest (qty 4, flat)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Unspecified (qty 2, flat)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Base cover (qty 1)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Battery (qty 2)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Display (qty 5, flat, black)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Display back cover (qty 4, flat)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Fan (qty 2, black)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Hard drive (qty 4)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Hinge (qty 2)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Keyboard (qty 4, black)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Optical drive (qty 4, black)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Palm rest (qty 2, flat)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Screw kit (qty 29, pan)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
System board (qty 4, black)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Unspecified (qty 6, flat,hex, black)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Display back cover (qty 4, flat)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Fan (qty 4, black)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Keyboard (qty 4, black)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Optical drive (qty 1)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Palm rest (qty 2, flat)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Screw kit (qty 10, flat)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
System board (qty 3)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Unspecified (qty 3)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Display back cover (qty 4, flat)
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
Hard drive (qty 4)
pitch 0.5 mm · tap 2.5 mm · clearance 3.4 mm · PH1 / Torx T10
Unspecified (qty 1)
pitch 0.5 mm · tap 2.5 mm · clearance 3.4 mm · PH1 / Torx T10
Base cover (qty 5)
pitch 0.5 mm · tap 2.5 mm · clearance 3.4 mm · PH1 / Torx T10
Bracket (qty 4)
pitch 0.5 mm · tap 2.5 mm · clearance 3.4 mm · PH1 / Torx T10
Chassis/frame (qty 3)
pitch 0.5 mm · tap 2.5 mm · clearance 3.4 mm · PH1 / Torx T10
Speaker (qty 1)
pitch 0.5 mm · tap 2.5 mm · clearance 3.4 mm · PH1 / Torx T10
Unspecified (qty 4, flat, black)
pitch 0.5 mm · tap 2.5 mm · clearance 3.4 mm · PH1 / Torx T10
Base cover (qty 3)
pitch 0.5 mm · tap 2.5 mm · clearance 3.4 mm · PH1 / Torx T10
Speaker (qty 4)
pitch 0.5 mm · tap 2.5 mm · clearance 3.4 mm · PH1 / Torx T10
Unspecified (qty 3, flat,hex, black)
pitch 0.5 mm · tap 2.5 mm · clearance 3.4 mm · PH1 / Torx T10
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 / M3, 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: for pan head screws, measure from under the head to the tip (countersunk heads are the exception: they are measured overall).
- The records span 1.7–25 mm, which means different positions take different lengths — match each hole to its own screw.
- Driver: the source does not name the drive. Standard M1.6 heads take PH00 for Phillips and T4–T5 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 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 / M3
- Headphone hinge screw sizes are usually quoted from screwdriver bit size, not an actual thread spec - measure before buying.
- M.2 SSD mounting screws (M2 x 3mm) are frequently mislabeled generically as 'M.2 screws' which can be confused with the M2 metric thread designation — they do coincide numerically here but are conceptually distinct (M.2 = card format, M2 = thread size).
- Nylon-coated M2.5 screws (ThinkPad Edge) are thread-locking; plain replacements work loose over time.
- 3.5in desktop and enterprise hard drives are 6-32 UNC imperial, not M3 - only the 2.5in form factor is metric.
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 Lenovo ThinkPad 770, closest length match first.
- Acer Aspire 8935G also M2.5 × 4 mm
- Dell Inspiron 15 3530 (with USB Type-C) also M2 × 3.5 mm
- HP 2140 also M2 × 4 mm
- HP Compaq 320 also M2.5 × 3 mm
- Lenovo IdeaPad S740-15IRH also M2 × 4 mm
- HP Mini 1000 also M1.6 × 4 mm
- HP 470 G7 also M2.5 × 3 mm
- Lenovo V14 Gen 4 also M2 × 3.5 mm
Questions about Lenovo ThinkPad 770 screws
- What size screw does Lenovo ThinkPad 770 use?
- M1.6 × 4 mm for screw kit (qty 2, flat); M1.6 × 4 mm for unspecified (qty 2, flat, black); M2 × 1.7 mm for optical drive (qty 4); M2 × 10 mm for heat sink (qty 3, yellow); M2 × 10 mm for screw kit (qty 3, pan); M2 × 10 mm for unspecified (qty 3, yellow); M2 × 14 mm for card reader (qty 2, yellow); M2 × 14 mm for screw kit (qty 5, pan); M2 × 14 mm for unspecified (qty 1); M2 × 16 mm for unspecified (qty 2); M2 × 2.4 mm for optical drive (qty 4); M2 × 3.5 mm for heat sink (qty 4, black); M2 × 3.7 mm for display (qty 2); M2 × 3.7 mm for unspecified (qty 2, flat); M2 × 4 mm for hinge (qty 2); M2 × 4 mm for screw kit (qty 5); M2 × 4 mm for unspecified (qty 2); M2 × 4.3 mm for display (qty 2); M2 .
- How long are the screws in Lenovo ThinkPad 770?
- The records range from 1.7 to 25 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 Lenovo ThinkPad 770?
- The sources do not name the drive. For M1.6, Phillips heads normally take PH00 and Torx heads T4–T5; socket heads take 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 Lenovo ThinkPad 770?
- TechSpareWarehouse (our own store) lists M1.6 x 4mm, M2 x 2.5mm and M2 x 4mm, which match lengths in the records above.