M2.5 x 6mm screws — what they fit & where to buy

87 sourced applications in this database list a M2.5 screw at 6 mm (or a length range that includes it), most of them in laptops & pcs. A M2.5 x 6mm screw has a 0.45 mm coarse pitch, so a fully engaged 6 mm shank gives about 13.3 thread turns (2.4× the diameter).

Buy M2.5 x 6mm screws

TechSpareWarehouse stocks 22 M2.5 x 6mm listings (black, Phillips flat/low-profile head), most named for the exact device they fit.

On eBay: Laptop Bottom Base Cover Screws M2.5x6mm Replacement 8-Pack

Search tip: stores list these as “M2.5 x 6mm screw”. Check the thread and length against your old screw before ordering.

Disclosure: TechSpareWarehouse is our own parts store — we earn from these sales. As an Amazon Associate we also earn from qualifying purchases. Fitment data on this site is not changed by what we stock.

M2.5 x 6mm specs

Thread
M2.5 × 0.45
Length
6 mm
Thread turns
≈ 13.3
Length ÷ diameter
2.4×
Tap drill
2.05 mm
Clearance (close)
2.7 mm
Phillips
PH1
Torx / hex
T8 / 2 mm

Length is measured from under the head for pan, wafer and button heads, and overall for flat (countersunk) heads. Neighbouring sizes we track: M2.5 x 5 mm (94 applications) and M2.5 x 8 mm (63).Going 0.5 mm too long can bottom out in a blind boss or touch a board underneath.

Where M2.5 x 6mm screws are used

  • Laptops & PCs17
  • Drones, RC & Gimbals13
  • Vehicles, Marine & Mobility11
  • 3D Printing, CNC & Robotics10
  • Electronics, Racks & Enclosures8
  • Displays, TVs & Mounts6
  • Other Equipment4
  • Cameras & Optics4

More M2.5 x 6mm listings named for specific devices

Devices that use M2.5 x 6mm screws (87)

Lenovo ThinkPad T / X / L series

palmrest-to-base and hinge bracket screws, black oxide flat/wafer head

3-6mm by location · reported · source

Lenovo IdeaPad

base cover screws, often mixed with M2 on speaker brackets

4-6mm · reported · source

HP Pavilion

base cover and hinge bracket screws, black-oxide flat head

4-6mm · reported · source

Acer Aspire / Swift

base cover screws, black flat/pan head

4-6mm · reported · source

Framework Laptop 16

non-captive fasteners documented per component in the fastener guide

3-6mm · reported · source

Raspberry Pi 3B / 4B / 5 / Zero 2 standoff kits

chassis-mount female-female standoffs with screws included

6mm screws with 12mm or 16mm standoffs · confirmed · source

Raspberry Pi HAT stacking (Pololu / Adafruit)

male-female standoffs for stacking HATs and expansion boards

11mm standoff, 6mm thread · confirmed · source

Raspberry Pi nylon standoff packs

panel and robot-chassis mounting

6mm and mixed packs · confirmed · source

MikroTik RouterBOARD outdoor case

board standoff / distancer mounting screws

5-8mm · reported · source

Camera cages & rigs

small bracket and accessory mount points (baseplates are mostly M3)

4-8mm · reported · source

E-scooter dashboards & controllers

display and controller housing screws

5-10mm · reported · source

Dell Alienware bottom panel

heavier Torx screws for the gaming chassis cover

~5-6mm · reported · source

Lenovo Legion bottom cover and fans

thicker gaming chassis panel and fan shroud

~5-6mm · reported · source

ASUS ROG bottom case and heatsink

gaming chassis cover and cooling shroud

~5-6mm · reported · source

Acer Nitro / Predator fans and bottom

cooling shroud and thick bottom case

~5-6mm · reported · source

MSI gaming laptop bottom case and heatsink

bottom cover and cooling assembly on the thick chassis

~5-6mm · reported · source

Camera lens mount flange

secures the lens mount to a mirrorless or DSLR body

3-6mm · reported · source

Microscope objective turret

the nosepiece / objective retaining collar on lab microscopes

4-8mm · reported · source

Fishing reel handle lock nut

locks the handle nut plate on right-hand conversions

5-8mm · reported · source

Dive computer strap / bezel

bezel ring and strap lugs on wrist dive computers

3-6mm · reported · source

Marine compass bezel

holds the glass and housing ring on boat compasses

5-10mm · reported · source

Dyson internal circuit board

the control board inside the handle

4-8mm · reported · source

Rotary tool (Dremel) housing

collet housing and motor casing

6-10mm · reported · source

Raspberry Pi 4 / 5 mounting holes

the four corner holes used by cases and standoffs

5-11mm standoffs · confirmed · source

Raspberry Pi Zero mounting holes

the two diagonal holes on the small board

5-6mm · confirmed · source

Raspberry Pi HAT standoffs

the official HAT spacing between Pi and add-on board

11mm standoff with 6mm screws · confirmed · source

Raspberry Pi official 7in touchscreen

display frame and Pi bracket mounting

6-10mm · reported · source

NVIDIA Jetson Nano carrier board

mounting holes on the developer kit board

6-8mm · confirmed · source

micro:bit enclosure mounting

mounting the board into cases and kits

4-6mm · reported · source

Eurorack rails (older Doepfer variant)

some older cases are tapped M2.5, easily confused with M3

6mm · reported · source

Model aircraft control horns

Control-surface horn screws

6-8mm · reported

Xbox One S/X controller PCB standoffs

Aftermarket standoff mounts built around the model 1708 PCB holes

4-6mm · reported · source

Sewing machine needle plate

Needle plate and presser foot screws on domestic machines

5-10mm · reported

Antique wall clock pendulum brackets

Pendulum bracket and movement mount screws in European clocks

5-10mm · reported

Xbox Series X drive bay and PSU

Torx screws for internal component mounting

5-8mm · reported · source

Amazon Echo (full size) drivers

Driver and board assembly screws

6-10mm · reported · source

Sonos One control panel and mic array

Smaller screws for the top control panel

4-6mm · confirmed · source

Compact projector internals

Board and lens assembly retention

5-10mm · reported · source

Docking station internal boards

Board mounting screws

5-6mm · reported · source

Drone remote controller internals

Board and case assembly screws

5-10mm · reported · source

Raspberry Pi HAT standoffs

Official HAT spec uses M2.5 brass standoffs, 11mm typical

4-11mm · confirmed · source

Raspberry Pi Compute Module 4 carrier/IO board

CM4 carriers reuse the Pi-standard M2.5 standoff spacing

5-11mm · reported · source

NVIDIA Jetson Orin Nano / Xavier NX carrier

Jetson carrier mechanical specs document M2.5 mounting holes

5-8mm · reported · source

PCB standoffs for compact electronics

M2.5 standoffs common across the Raspberry Pi ecosystem

5-15mm · confirmed · source

Raspberry Pi camera module mounts

Third-party camera mounts use M2.5/M2 board holes

4-8mm · reported · source

Intel NUC / mini PC internal boards

SFF PCs use M2.5 or M3 for internal board and drive mounting

4-8mm · reported · source

DIN 912 socket-head cap screw

0.45mm pitch, head 4.32-4.68mm, 2mm hex key

4-20mm · confirmed · source

DIN 965 / ISO 7046 countersunk Phillips screw

Head 4.7mm diameter, 1.5mm high

4-20mm · confirmed · source

Axial Racing crawler/buggy kits

Flat head countersunk screw, short length

6mm · confirmed · source

GE HealthCare anesthesia delivery machine

"Screw M2.5-0.45 x 6 Pan Posidrive" listed under GE HealthCare's official service parts store, category Anesthesia Delivery

6mm · confirmed · source

Raspberry Pi (Model B+ through Pi 4/Pi 5 form factor boards)

Official mounting hole template site states board mounting holes are 2.9mm to accept M2.5 screws/bolts on the standard 85x56mm Pi footprint.

Typically 6-16mm depending on standoff/case · confirmed · source

NVIDIA Jetson Nano Developer Kit carrier board

Winford Engineering DIN-rail mounting plate product page states the plate uses M2.5 thread screws/nylon standoffs to mount the Jetson Nano Developer Carrier Board.

6-10mm standoffs · confirmed · source

NBK SSCZS miniature captive screw for precision instruments

M2.5 nominal thread offered in NBK's SSCZS miniature captive-screw line for precision instrument assemblies

4-10mm · confirmed · source

Turntable headshell / phono cartridge mounting screws

Cartridge Mounting Screw Kit: 'Nominal size (metric): M2.5, Thread pitch: 0.45, Length: 3, 4, 5, 6, 8 and 10 mm'

3-10mm · confirmed · source

Turntable cartridge mounting kit (retail)

'2 x M2.5x3 mm Stainless Steel Screws. 2 x M2.5x6 mm Stainless Steel Screws. 2 x M2.5x8 mm...' cartridge/tonearm mounting fixings

3-8mm · confirmed · source

Tonar cartridge screw set for phono cartridges

'Screw type: M2.5 non-magnetic hardware, Lengths included: 3/6...' for mounting phono cartridges to headshells

3-6mm+ · confirmed · source

Eurorack module-to-rail mounting screws (Vector/SynthRacks rails)

'The threaded rails or nuts are made to receive either M2.5 or M3 machine screws... You will need M2.5 x 6mm to fix the modules or M2.5 x 8mm if a washer is used'

6-8mm · confirmed · source

Axial SCX10 III RC crawler, countersunk and cap screws

M2.5x3 / x6 / x8 countersunk and M2.5x10 / x16 / x18 socket cap in the stock kit

3-18mm · confirmed · source

Juki industrial sewing machine needle-area hardware

OEM part listed as M2.5 x 6mm self tapping screw, Juki G_03-11051

6mm · confirmed · source

Toshiba Chromebook 2 bottom cover screw

Community-confirmed replacement size

6.0mm · likely · source

Audio MusiKraft cartridge mounting screw kit

phono cartridge/headshell mounting, pitch 0.45

3-10mm · confirmed · source

VinylPro aluminium cartridge kit

turntable headshell cartridge hardware

6/8/10/12/15mm · confirmed · source

ASUS Chromebox 4 (CN66)

M2.5 x 4 and M2.5 x 6 screws used in chassis disassembly

4mm / 6mm · confirmed · source

Pioreactor Raspberry Pi HAT assembly

M2.5 12mm hex standoffs plus M2.5 10mm screws fastening HAT to Pi

6-12mm · confirmed · source

PW-Sat2 CubeSat secondary structure and panels

M2.5 x 4mm solar panel brackets, M2.5 x 6mm sun sensor mount, M2.5 x 8mm secondary structure to X frames

4-8mm · confirmed · source

Extech 407732 sound level meter battery cover screw

Manufacturer support answer states battery compartment cover screw is 'PM2.5 x 6 mm' (metric M2.5 pan-head, 6mm)

M2.5x6 · confirmed · source

Phono cartridge headshell mounting screws (Tonar universal set)

Product spec explicitly lists 'Screw type: M2.5 non-magnetic hardware' for mounting nearly any phono cartridge to headshell

M2.5x3, M2.5x6, M2.5x8 · confirmed · source

Oyaide SCR-S phono cartridge screw set

Product titled 'Oyaide M2.5 phono cartridge screw set w/carbon graphite nylon washer', contains 6/8/10mm lengths, explicit M2.5 thread

M2.5x6, M2.5x8, M2.5x10 · confirmed · source

Motorola CP125 business portable radio service manual fasteners

Motorola portable radio service manual documents chassis/battery-latch screws; Motorola's commercial portable radio disassembly procedures of this era specify M2.5 case screws in the parts/torque list

M2.5x6 · likely · source

Panasonic Toughbook CF-19 rugged laptop LCD hinge/latch assembly

Panasonic Toughbook CF-19 series service manual (ManualsLib listing) documents disassembly of the rugged LCD hinge/latch assembly; Panasonic's rugged notebook service manuals of this era use M2.5 hinge screws consistent with standard notebook hinge fastener sizing

M2.5x6 · likely · source

Futaba / Robbe servo horn mounting screws

Servo horn mounting screw set listed as M2.5x6

6 · confirmed · source

Toshiba Chromebook 2

bottom cover screws

6mm · likely · Source: iFixit Answers community report

Wurth Elektronik WA-SSTIE steel spacer stud

PCB-to-enclosure standoff stud

5-70mm · confirmed · Source: we-online.com spacer studs page

Wurth Elektronik WA-SPAIE plastic spacer stud

plastic PCB standoff stud

5-65mm · confirmed · Source: we-online.com spacer studs page

Holybro X500 V2 with Pixhawk 6C

Payload/battery holder countersunk screws

6 mm · confirmed · source

HP 250R G9 / 256R G9

display assembly retention screws (4x)

6.0mm · confirmed · source

Holybro X500 V2 with Pixhawk 6C (PX4 official build)

countersunk screws for payload / battery holder mounting

6mm · confirmed · source

Acer Aspire 5332 / 5732Z

Screw List: SCREW M2.48D 6.0L K 5.5D 0.8T ZKNL

6mm · confirmed · source

Acer 7520 / 7220

Screw List: SCREW M2.5*6(NL), part MA0000062G0

6mm · confirmed · source

Fujitsu Lifebook U9313X

Official screw reference page lists M2.5 x L6 Phillips PH00 screw used in disassembly

6mm · confirmed · source

Lenovo ThinkPad P16 Gen 2

Hardware Maintenance Manual screw list: M2.5 x 4 mm silver and M2.5 x 6 mm black.

4-6 · confirmed · source

Milwaukee cordless tool (service bulletin 54-26-2590)

Pan-head Phillips machine screw at the light-pipe / switch area, listed as "M2.5 x 6mm Pan Hd. Phil. Mach. Scr."

6 mm · confirmed · source

PowerVision PowerRay underwater drone

Rear panel — 16 red-marked M2.5 x 6 screws; airtight module uses 8 red M2.5 x 12

6 mm and 12 mm · confirmed · source

Holybro X500 V2 with Pixhawk 6C

PX4 build guide: payload and battery holder fixed with "Sunk Screw M2.5*6 12pcs"

6 mm · confirmed · source

Acer Aspire 5730Z / 5330 series

FRU parts list screw entry "ISO M2.5X6(H=0.7~0.8MM)"

6 mm · confirmed · source

Turntable headshell / phono cartridge mounting

Cartridge-to-headshell mounting screws, M2.5 x 0.45

3-10 mm · confirmed · source

IPETRONIK M-SENS2 sensor module mounting bracket

Official datasheet specifies 'Countersunk screw M2.5 x 6' to attach the sensor module to its mounting bracket

6mm · confirmed · source