M2.5 x 4mm screws — what they fit & where to buy

base cover assembly screws (black)

4-5mm · reported · source

base cover and keyboard bezel screws per the hardware maintenance manual

3-5mm · reported · source

base cover / keyboard screws in the HMM screw table

3-5mm · reported · source

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

3-6mm by location · reported · source

base cover screws, often mixed with M2 on speaker brackets

4-6mm · reported · source

base cover screws, mixed captive and non-captive per Dell's screw list

3-5mm · reported · source

base cover captive screws

4-5mm · reported · source

base cover and keyboard screw-size list

3-5mm · reported · source

base cover / keyboard screw-size list

3-5mm · reported · source

base enclosure and keyboard screws per the maintenance guide torque tables

4-5mm · reported · source

base enclosure and keyboard retention screws

3-5mm · reported · source

base cover and palmrest screws per the current maintenance guide

3-5mm · reported · source

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

4-6mm · reported · source

base cover and keyboard bracket screws (M2 and M2.5 mixed — a frequent confusion)

3-5mm · reported · source

base cover screws, black flat/pan head

4-6mm · reported · source

non-captive fasteners documented per component in the fastener guide

3-6mm · reported · source

hinge-to-palmrest and hinge-to-base retaining screws

3-4mm · reported · source

mainboard-to-chassis mounting screws, flat/pan head

3-4mm · reported · source

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

4-8mm · reported · source

anchors the display hinges to the chassis

~4-5mm · reported · source

holds the internal battery pack to the chassis

~4mm · reported · source

consumer-line bottom cover screws

~4-5mm · reported · source

display hinge brackets to the base

~4-5mm · reported · source

bottom cover screws, usually hidden under the rubber feet

~4mm · reported · source

bottom panel screws on the ultraportable chassis

~4-5mm · reported · source

bottom panel screws on budget and consumer lines

~4-5mm · reported · source

secures the lens mount to a mirrorless or DSLR body

3-6mm · reported · source

secures the accessory shoe to the camera top plate

3-5mm · reported · source

the nosepiece / objective retaining collar on lab microscopes

4-8mm · reported · source

bezel ring and strap lugs on wrist dive computers

3-6mm · reported · source

the control board inside the handle

4-8mm · reported · source

mounting the board into cases and kits

4-6mm · reported · source

Aftermarket standoff mounts built around the model 1708 PCB holes

4-6mm · reported · source

Smaller screws for the top control panel

4-6mm · confirmed · source

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

4-11mm · confirmed · source

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

4-8mm · reported · source

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

4-8mm · reported · source

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

4-20mm · confirmed · source

Head 4.7mm diameter, 1.5mm high

4-20mm · confirmed · source

Jewelry pendant explicitly stated as designed 'for M2.5 screw interchangeable system' with 'The M2.5 thread is 4mm long'

4mm thread length · confirmed · source

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

4-10mm · confirmed · source

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

'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

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

3-6mm+ · confirmed · source

Manual lists M2.5 x 4mm screw

4mm · confirmed · source

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

3-18mm · confirmed · source

Metric nylon standoff table lists M2.5 thread size

4-5mm head dims · confirmed · source

phono cartridge/headshell mounting, pitch 0.45

3-10mm · confirmed · source

Four pan head board-mounting screws

4mm · confirmed · source

Phillips M2.5 x 4.0 display assembly screws (x6); screw table also lists M2.5 x 4 with 4.5mm head

4mm · confirmed · source

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

4mm / 6mm · confirmed · source

M2.5 x 4mm socket cap screw for the monitor location pin

4mm · confirmed · source

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

Screw list item 'SCREW I2.5*3M-BNIH(M2.5L3)' i.e. explicit M2.5 length 3mm screw, and 'SCREW M2.5*4L-BZN-NYLOK'

M2.5x3, M2.5x4 · confirmed · source

top cover / bezel assembly retention (5)

4mm · confirmed · Source: HP EliteBook 830/836 G5 MSG

right display hinge retention (2)

4mm · confirmed · Source: HP EliteBook 830/836 G5 MSG

display hinge set retention (5)

4mm · confirmed · Source: HP EliteBook 830/836 G5 MSG

PCB standoff spacer

4-5mm thread length · confirmed · Source: Keystone Catalog K75 2025 p.87 / M60.2 p.72

8-12x M2.5x4.0 flat-head nylon-coated screws incl. display hinge to base

4.0mm · confirmed · source

LCD unit — flat-head screw, 4mm long (official Hardware Maintenance Manual screw table)

4mm · confirmed · source

USB board cable and USB board — flat-head screw, 4.0mm long (official Hardware Maintenance Manual screw table)

4.0mm · confirmed · source

Screw List Table 6-4: SCREW M2.5*4.0-I(NI)(NYLOK)

4mm · confirmed · source

Screw List: SCREW M2.48D 4.0L K 5.5D 0.8T ZKNL

4mm · confirmed · source

Screw List: SCREW M2.5*4(NL), part MA0000061G0

4mm · confirmed · source

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

4-6 · confirmed · source

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

3-10 mm · confirmed · source