Dell Inspiron 15 3520 screw size

Dell Inspiron 15 3520 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 / M3, 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 2–5 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 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 Dell Inspiron 15 3520, closest length match first.

• HP EliteBook 865 16 inch G11 also M2 × 2 mm
• Dell Inspiron 15 3568 also M2 × 3 mm
• Dell Alienware m15 R2 also M2 × 3 mm
• Dell Inspiron 15 5515 also M2 × 3 mm
• Lenovo IdeaPad s940-14IIL also M2 × 3 mm
• HP ProBook 450 15.6 inch G9 also M2 × 2 mm
• Dell Latitude 5310 also M2 × 5 mm
• Lenovo YOGA 520-14IKB also M2 × 3.5 mm

Questions about Dell Inspiron 15 3520 screws

What size screw does Dell Inspiron 15 3520 use?

M2 × 5 mm for base cover screws; M2 × 3 mm for 3-cell battery retention; M2 × 3 mm for 4-cell battery retention; M2 × 2 mm for RF bracket fix (head OD 7 mm); M2 × 2 mm for M.2 2230 SSD retention (head OD 5 mm); M2 × 2 mm for M.2 2280 SSD retention (head OD 5 mm); M2 × 3.5 mm for wireless card retention; M2 × 3.5 mm for I/O board retention; M2 × 3.5 mm for hard-drive assembly retention; M2 × 3 mm for heat sink retention; M2 × 5 mm for fan retention; M2 × 2 mm for power button (head OD 5 mm); M2.5 × 5 mm for power button with fingerprint reader; M3 × 3 mm for hard-drive bracket retention.

How long are the screws in Dell Inspiron 15 3520?

The records range from 2 to 5 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 Dell Inspiron 15 3520?

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 Dell Inspiron 15 3520?

TechSpareWarehouse (our own store) lists M2 x 5mm, M2 x 3mm and M2 x 2mm, which match lengths in the records above.