Lenovo G780 screw size

Lenovo G780 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 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.
3. 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.
4. Length: measure from under the head to the tip for pan, button, wafer and cap heads; countersunk (flat) heads are measured overall.
5. The records span 2–8 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 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.
7. 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.

Pitch gauge · Screw size finder · Torque guide

More in Laptops & PCs

The same screw also fits

Devices whose records share a thread with Lenovo G780, closest length match first.

• Lenovo ThinkPad S30 also M2.5 × 4 mm
• Acer Aspire 5535 also M2 × 2 mm
• Acer Aspire 3810T also M2 × 3 mm
• Lenovo Ideapad Z560 also M2 × 2 mm
• Dell Precision 7530 also M2 × 2 mm
• HP 2101006331; both pages checked, same PDF) also M2 × 2 mm
• Acer Aspire 5534 also M2 × 3 mm
• Lenovo ThinkPad A21e also M2 × 5.7 mm

Questions about Lenovo G780 screws

What size screw does Lenovo G780 use?

M2 × 2 mm for unspecified (qty 4, flat); M2 × 3 mm for display (qty 8, flat, black); M2 × 3 mm for fan (qty 4, flat, black); M2 × 3 mm for unspecified (qty 3, flat, black); M2 × 3 mm for wireless card (qty 1, flat, black); M2 × 3.2 mm for fan (qty 3, flat, black); M2 × 5.7 mm for base cover (qty 4, flat, black); M2 × 6 mm for keyboard (qty 3, flat, black); M2.5 × 4 mm for display (qty 4, flat, black); M2.5 × 4 mm for hard drive (qty 2, flat, black); M2.5 × 4 mm for system board (qty 3, flat, black); M2.5 × 4 mm for unspecified (qty 2, flat, black); M2.5 × 5 mm for display (qty 4, flat, white,black); M2.5 × 5 mm for palm rest (qty 4, flat); M2.5 × 5.7 mm for speaker (qty 4, flat, black); M2.5.

How long are the screws in Lenovo G780?

The records range from 2 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 Lenovo G780?

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 Lenovo G780?

TechSpareWarehouse (our own store) lists M2 x 2mm, M2 x 3mm and M2 x 6mm, which match lengths in the records above.