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Dell Precision 7680 screw size

M2 / M2.5 · 2 to 7 mm long

Our records put Dell Precision 7680 on M2 and M2.5 screws in lengths from 2 to 7 mm.

There are 21 separate fitment records for it, including card reader (qty 2) (M2), chassis/frame (qty 9) (M2) and keyboard (qty 6) (M2), plus 18 more in the table below.

21 of the 21 records are marked confirmed, drawn from 1 source (dell.com).

M2 means a 2 mm nominal diameter with a 0.4 mm thread pitch. Imperial look-alike: #2-56 UNC (2.18 mm) is close but not interchangeable.

Dell Precision 7680 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.

ThreadLengthPitchHeadDriveWhere it goesStatus
M22 mm0.4 mmnot statednot statedCard reader (qty 2)Confirmed
M22 mm0.4 mmnot statednot statedChassis/frame (qty 9)Confirmed
M22 mm0.4 mmnot statednot statedKeyboard (qty 6)Confirmed
M22.5 mm0.4 mmnot statednot statedChassis/frame (qty 1)Confirmed
M22.5 mm0.4 mmnot statednot statedKeyboard (qty 24)Confirmed
M22.5 mm0.4 mmnot statednot statedSSD (qty 2)Confirmed
M23 mm0.4 mmnot statednot statedDC-in (qty 1)Confirmed
M23 mm0.4 mmnot statednot statedPower button (qty 1)Confirmed
M23 mm0.4 mmnot statednot statedWireless card (qty 1)Confirmed
M23.5 mm0.4 mmnot statednot statedKeyboard (qty 5)Confirmed
M23.5 mm0.4 mmnot statednot statedUnspecified (qty 4)Confirmed
M25 mm0.4 mmnot statednot statedHeat sink (qty 4)Confirmed
M25 mm0.4 mmnot statednot statedMemory (qty 2)Confirmed
M25 mm0.4 mmnot statednot statedSystem board (qty 8)Confirmed
M25 mm0.4 mmnot statednot statedUnspecified (qty 3)Confirmed
M26 mm0.4 mmnot statednot statedChassis/frame (qty 4)Confirmed
M26 mm0.4 mmnot statednot statedMemory (qty 2)Confirmed
M26 mm0.4 mmnot statednot statedSystem board (qty 4)Confirmed
M26 mm0.4 mmnot statednot statedUnspecified (qty 4)Confirmed
M27 mm0.4 mmnot statednot statedBattery (qty 3)Confirmed
M2.53 mm0.45 mmnot statednot statedDisplay (qty 6)Confirmed

Fitment records and sources

M22 mmconfirmed

Card reader (qty 2)

pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6

M22 mmconfirmed

Chassis/frame (qty 9)

pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6

M22 mmconfirmed

Keyboard (qty 6)

pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6

M22.5 mmconfirmed

Chassis/frame (qty 1)

pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6

M22.5 mmconfirmed

Keyboard (qty 24)

pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6

M22.5 mmconfirmed

SSD (qty 2)

pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6

M23 mmconfirmed

DC-in (qty 1)

pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6

M23 mmconfirmed

Power button (qty 1)

pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6

M23 mmconfirmed

Wireless card (qty 1)

pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6

M23.5 mmconfirmed

Keyboard (qty 5)

pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6

M23.5 mmconfirmed

Unspecified (qty 4)

pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6

M25 mmconfirmed

Heat sink (qty 4)

pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6

M25 mmconfirmed

Memory (qty 2)

pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6

M25 mmconfirmed

System board (qty 8)

pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6

M25 mmconfirmed

Unspecified (qty 3)

pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6

M26 mmconfirmed

Chassis/frame (qty 4)

pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6

M26 mmconfirmed

Memory (qty 2)

pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6

M26 mmconfirmed

System board (qty 4)

pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6

M26 mmconfirmed

Unspecified (qty 4)

pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6

M27 mmconfirmed

Battery (qty 3)

pitch 0.4 mm · tap 1.6 mm · clearance 2.4 mm · PH0 / Torx T6

M2.53 mmconfirmed

Display (qty 6)

pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8

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 2–7 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.

Common mix-ups with M2 / M2.5

  • The standard M.2 SSD screw is M2 x 3mm, but some laptops and handhelds use non-standard lengths or head shapes.
  • Xbox Series X internal chassis screws are M3, not M2 (confirmed on iFixit) — a widespread misconception.
  • Dell/HP/Lenovo manuals often list screws only by torque or head shape, so community teardowns are needed for diameter.
  • M2.5 pitch is 0.45mm vs M3's 0.5mm and M2's 0.4mm — forcing the wrong one strips plastic bosses instantly.

Pitch gauge · Screw size finder · Torque guide

Buy these screws at TechSpare Warehouse

In stock and shipped from South Carolina. Our black screws are Phillips wafer head (low profile); match the head style and length to the original before you order.

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The same screw also fits

Devices whose records share a thread with Dell Precision 7680, closest length match first.

Questions about Dell Precision 7680 screws

What size screw does Dell Precision 7680 use?
M2 × 2 mm for card reader (qty 2); M2 × 2 mm for chassis/frame (qty 9); M2 × 2 mm for keyboard (qty 6); M2 × 2.5 mm for chassis/frame (qty 1); M2 × 2.5 mm for keyboard (qty 24); M2 × 2.5 mm for SSD (qty 2); M2 × 3 mm for DC-in (qty 1); M2 × 3 mm for power button (qty 1); M2 × 3 mm for wireless card (qty 1); M2 × 3.5 mm for keyboard (qty 5); M2 × 3.5 mm for unspecified (qty 4); M2 × 5 mm for heat sink (qty 4); M2 × 5 mm for memory (qty 2); M2 × 5 mm for system board (qty 8); M2 × 5 mm for unspecified (qty 3); M2 × 6 mm for chassis/frame (qty 4); M2 × 6 mm for memory (qty 2); M2 × 6 mm for system board (qty 4); M2 × 6 mm for unspecified (qty 4); M2 × 7 mm for battery (qty 3); M2.5 × 3 mm for d.
How long are the screws in Dell Precision 7680?
The records range from 2 to 7 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 Precision 7680?
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 Precision 7680?
TechSpareWarehouse (our own store) lists M2 x 2mm, M2 x 2.5mm and M2 x 3mm, which match lengths in the records above.