Lenovo ThinkPad P40 Yoga screw size

Lenovo ThinkPad P40 Yoga 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. 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).
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: 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 2–6 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 P40 Yoga, closest length match first.

• Lenovo ThinkPad X32 also M2 × 3 mm
• Dell Latitude 3440 also M2 × 2.5 mm
• Lenovo ideapad 320E-14ISK also M2 × 3 mm
• Lenovo ThinkPad L15 Gen 3 also M2 × 3 mm
• Lenovo YOGA 330H-11IGM also M1.6 × 2.5 mm
• Dell XPS 15 9530 also M1.6 × 2.5 mm
• HP EliteBook Folio 1030 G1 also M2 × 3 mm
• HP or nx9020 PC Compaq Presario 2200 also M2 × 3 mm

Questions about Lenovo ThinkPad P40 Yoga screws

What size screw does Lenovo ThinkPad P40 Yoga use?

M1.6 × 2 mm for hinge (qty 1, flat, silver); M1.6 × 2.5 mm for unspecified (qty 2, flat, black); M2 × 2.5 mm for system board (qty 4, flat, black); M2 × 3 mm for SSD (qty 1, flat, black); M2 × 3 mm for unspecified (qty 1, broadhead, black); M2 × 3 mm for wireless card (qty 1, flat, black); M2 × 3.5 mm for card reader (qty 1, broadhead, black); M2 × 3.5 mm for unspecified (qty 3, small-head, black); M2 × 4.5 mm for battery (qty 4, small-head, black); M2 × 4.5 mm for card reader (qty 1, broadhead, black); M2 × 6 mm for base cover (qty 1, flat, black); M2 × 6 mm for keyboard (qty 3, flat, black); M2.5 × 2.5 mm for hinge (qty 6, flat, black); M2.5 × 2.5 mm for speaker (qty 4, broadhead, black); .

How long are the screws in Lenovo ThinkPad P40 Yoga?

The records range from 2 to 6 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 P40 Yoga?

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 P40 Yoga?

TechSpareWarehouse (our own store) lists M2 x 2.5mm, M2 x 3mm and M2 x 6mm, which match lengths in the records above.