Dell Alienware m15 R4 screw size

Dell Alienware m15 R4 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 M1.2 screw measures about 1.2 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: 0.25 mm from one thread crest to the next (40 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 1.6–5 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 M1.2 heads take PH000 / JIS 00 for Phillips and T1–T2 for Torx; 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 M1.2 is about 5-8 N·cm into metal threads and 3-5 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 Dell Alienware m15 R4, closest length match first.

• Dell Inspiron 15 3510 also M2 × 2 mm
• Dell Latitude 3190 also M2 × 2 mm
• MSI gaming laptop M.2 SSD (dual slot) also M2 × 3 mm
• Dell Latitude 5421 also M2 × 2 mm
• Acer Emachines E430 also M2 × 3 mm
• Dell Alienware m15 R7 also M2 × 2 mm
• Lenovo V310-15IKB also M2 × 2 mm
• Dell Inspiron 15 3573 also M2 × 2 mm

Questions about Dell Alienware m15 R4 screws

What size screw does Dell Alienware m15 R4 use?

M1.2 × 1.6 mm for keyboard (qty 19); M1.2 × 2 mm for keyboard (qty 18); M1.2 × 2.1 mm for keyboard (qty 12); M2 × 1.9 mm for keyboard (qty 2); M2 × 1.9 mm for power button (qty 3); M2 × 1.9 mm for touchpad (qty 4); M2 × 2 mm for keyboard (qty 2); M2 × 2.5 mm for battery (qty 1); M2 × 2.5 mm for bracket (qty 1); M2 × 2.5 mm for keyboard (qty 11); M2 × 2.5 mm for SSD (qty 1); M2 × 2.5 mm for unspecified (qty 1); M2 × 2.5 mm for wireless card (qty 1); M2 × 3 mm for I/O board (qty 2); M2 × 3 mm for battery (qty 4); M2 × 3 mm for DC-in (qty 2); M2 × 3 mm for fan (qty 10); M2 × 3 mm for system board (qty 8); M2 × 3 mm for wireless card (qty 1); M2 × 4 mm for battery (qty 4); M2 × 4 mm for unspecif.

How long are the screws in Dell Alienware m15 R4?

The records range from 1.6 to 5 mm depending on the position, so match each screw to its own hole.

What is the thread pitch of an M1.2 screw?

0.25 mm (coarse), which is the standard pitch for M1.2 machine screws. The tap drill is 0.95 mm and the normal clearance hole is 1.4 mm.

What screwdriver do I need for Dell Alienware m15 R4?

The sources do not name the drive. For M1.2, Phillips heads normally take PH000 / JIS 00 and Torx heads T1–T2.

Can I use an imperial screw instead of M1.2?

No. Imperial look-alike: #0-80 UNF (1.52 mm) is the closest imperial screw, but it is bigger — not a substitute. Use a true M1.2 screw so it does not cross-thread or strip the hole.

Where can I buy replacement screws for Dell Alienware m15 R4?

TechSpareWarehouse (our own store) lists M1.2 x 2mm, M2 x 2mm and M2 x 2.5mm, which match lengths in the records above.