Lenovo ThinkPad 770Z screw size

Lenovo ThinkPad 770Z 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.

How to check the screw before you buy

1. 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.
2. 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.
3. 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.
4. Length: for pan head screws, measure from under the head to the tip (countersunk heads are the exception: they are measured overall).
5. The records span 3–14 mm, which means different positions take different lengths — match each hole to its own screw.
6. 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.
7. 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.

Pitch gauge · Screw size finder · Torque guide

More in Laptops & PCs

The same screw also fits

Devices whose records share a thread with Lenovo ThinkPad 770Z, closest length match first.

• Lenovo ideapad MIIX 700-12ISK also M2 × 3.5 mm
• HP ProBook x360 11 G4 EE also M2.5 × 4 mm
• HP EliteBook 820 G4 also M2.5 × 3 mm
• Lenovo ThinkPad T14 Gen 5 also M2 × 3.5 mm
• Dell Vostro 15 3520 also M2 × 3.5 mm
• Acer Aspire 6530 also M2.5 × 4 mm
• Lenovo Yoga 500-15IHW also M2.5 × 4 mm
• Dell Latitude L400 also M2 × 3.5 mm

Questions about Lenovo ThinkPad 770Z screws

What size screw does Lenovo ThinkPad 770Z use?

M1.6 × 4 mm for screw kit (qty 2, flat); M1.6 × 4 mm for unspecified (qty 2, flat, black); M2 × 10 mm for heat sink (qty 3, yellow); M2 × 10 mm for screw kit (qty 3, pan); M2 × 14 mm for screw kit (qty 2, pan); M2 × 3.5 mm for heat sink (qty 4, black); M2.5 × 3 mm for screw kit (qty 8, pan,flat); M2.5 × 3 mm for unspecified (qty 4, black); M2.5 × 4 mm for card reader (qty 4, yellow); M2.5 × 4 mm for display (qty 4, yellow,black); M2.5 × 4 mm for hinge (qty 4, yellow); M2.5 × 4 mm for keyboard (qty 4, flat, black,yellow); M2.5 × 4 mm for screw kit (qty 23, pan); M2.5 × 4 mm for system board (qty 4, yellow); M2.5 × 4 mm for unspecified (qty 4, yellow,black); M2.5 × 6 mm for display (qty 4, bla.

How long are the screws in Lenovo ThinkPad 770Z?

The records range from 3 to 14 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 770Z?

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 770Z?

TechSpareWarehouse (our own store) lists M1.6 x 4mm, M2.5 x 3mm and M2.5 x 4mm, which match lengths in the records above.