M1.6 x 3mm screws — what they fit & where to buy

40 sourced applications in this database list a M1.6 screw at 3 mm (or a length range that includes it), most of them in phones, tablets & wearables. A M1.6 x 3mm screw has a 0.35 mm coarse pitch, so a fully engaged 3 mm shank gives about 8.6 thread turns (1.88× the diameter).

Buy M1.6 x 3mm screws

TechSpareWarehouse stocks 11 M1.6 x 3mm listings (black, Phillips flat/low-profile head), most named for the exact device they fit.

On eBay: M1.6 x 3mm Screws Compatible with Dell XPS 13 9340 Keyboard 10-Pack Black

Search tip: stores list these as “M1.6 x 3mm 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.

M1.6 x 3mm specs

Thread
M1.6 × 0.35
Length
3 mm
Thread turns
≈ 8.6
Length ÷ diameter
1.88×
Tap drill
1.25 mm
Clearance (close)
1.7 mm
Phillips
PH00
Torx / hex
T4–T5 / 1.5 mm

Length is measured from under the head for pan, wafer and button heads, and overall for flat (countersunk) heads. Neighbouring sizes we track: M1.6 x 4 mm (28).Going 0.5 mm too long can bottom out in a blind boss or touch a board underneath.

Where M1.6 x 3mm screws are used

  • Phones, Tablets & Wearables17
  • Laptops & PCs8
  • Cameras & Optics4
  • Other Equipment2
  • Electronics, Racks & Enclosures2
  • Medical & Laboratory2
  • Standards & References2
  • Drones, RC & Gimbals1

More M1.6 x 3mm listings named for specific devices

Devices that use M1.6 x 3mm screws (40)

Dell XPS 13 9360 / 9340

internal chassis screws listed in the official service-manual screw list

1.5-3mm · confirmed · source

Dell XPS 15 L521X

21 keyboard bracket screws securing bracket to palmrest

~3mm · confirmed · source

Watch bracelets & casebacks

2.0mm-head mini screws sold with 1.2/1.4mm variants

2-4mm · reported · source

Laptop touchpads / clickpads

touchpad module to palmrest on thin-and-light laptops

1.5-3mm · reported · source

RC micro helicopters

frame and linkage hardware in bulk metric kits

2-5mm · reported · source

Camera lens assemblies

lens barrel and aperture ring retaining screws

2-4mm · reported · source

Arduino / PCB standoffs

general electronics assembly and DIY project boards

3-8mm · confirmed · source

Dive watch bezels

bezel click-spring screws on some models

1.5-3mm · reported · source

Microsoft Surface Laptop internals

tiny screws on internal daughterboards (the case itself is glued)

~2-3mm · reported · source

Eyeglass hinge screw (heavier frames)

thick acetate and rimless frame hinges, per ISO 11381

3-5mm · confirmed · source

Watch strap keeper / clasp cover

small keeper loop or bracelet clasp cover plate

1.5-3mm · reported · source

Microscope stage clip / condenser

holds the specimen stage clips or condenser assembly

3-6mm · reported · source

Dental handpiece head

secures the rotating head on a dental drill

3-6mm · reported · source

Compact smart sensor PCBs

Internal PCB mounting inside small sensors

3-5mm · reported

iPad Pro 11-inch internal brackets

Logic board and battery bracket screws

2-4mm · reported · source

iPad Mini 5 internal brackets

Shield and bracket screws

2-3mm · reported · source

Motorola Android phones

Shield and board retention screws

2-3mm · reported · source

Kindle e-reader internals

Board and frame retention screws

3-5mm · reported · source

DIN 912 socket-head cap screw

0.35mm pitch, head diameter from 2.86mm

2-12mm · confirmed · source

DIN 965 / ISO 7046 countersunk Phillips screw

Head 3.0mm diameter, 0.96mm high — the countersunk profile for micro fasteners

2-10mm · confirmed · source

Steam Deck (LCD) Type 5 fastener

1.6mm diameter, 0.35mm pitch machine screw

3mm · confirmed · source

Framework Laptop 12 bezel and hinge fasteners

Official Framework fastener guide covers M1.6 screws for thin bezel/hinge attachment

1.5-3mm · confirmed · source

MacBook Pro 15-inch Retina (Mid 2015) lower case

Lower-case screws in the M1.6 class, supplied in two lengths

2.3-3.1mm · reported · source

Valve Steam Deck (LCD)

Official iFixit-measured screw ID guide lists multiple M1.6 fastener types used throughout the Steam Deck: Type 1 M1.6x9 plastic thread-forming, Type 2 M1.6x5 machine screw, Type 4 M1.6x4.5 plastic thread-forming, Type 5 M1.6x3 machine screw, Type 7 M1.6x4 plastic thread-forming

3mm, 4mm, 4.5mm, 5mm, 9mm · confirmed · source

Precision instrument hex socket head screws (used in cameras/electronics repair)

NBK catalog SNSS miniature hex socket head cap screw series explicitly offers M1.6 nominal thread with selectable lengths 2-12mm

2-12mm · confirmed · source

Spectacle frame hinge screws (ISO 11381 standard)

ISO 11381:2016 specifies M1.6 x 0.35 as one of the standard ophthalmic screw thread sizes for spectacle frames

2-5 mm (standard range) · confirmed · source

Framework Laptop 13 antenna module and hinge-to-top-cover

M1.6 x 3.0mm T5, 3.0mm head

3.0mm · confirmed · source

Framework Laptop 13 antenna module / top cover hinge screw

T5 head, 3.0mm head dia

3.0mm · confirmed · source

Valve Steam Deck (LCD) back cover

M1.6 x 0.35 pan head screws in 3mm and 5mm lengths on the rear shell; torque 8-10 cN.m

3mm / 5mm / 9mm · likely · source

PW-Sat2 CubeSat fastener bill of materials

M1.6 x 3mm and M1.6 x 5mm screws listed in the structure fastener table

3-5mm · confirmed · source

NBK SPE-MC PEEK micro pan head screws

M1.6 PEEK micro pan head screws, 1.5-6mm lengths, for precision instrument and sensor assembly where metal screws are unsuitable

1.5-6mm · confirmed · source

Dell Precision 5570

Display-assembly cable holder retention

3 mm · confirmed · source

ASUS ROG Ally (RC71L)

bottom cover screws

3.0mm and 9.0mm · confirmed · source

ASUS ROG Ally (RC71L)

battery module screws (8x)

3.0mm · confirmed · source

ASUS ROG Ally (RC71L)

fan module and I/O board screws (9x)

3.0mm · confirmed · source

ASUS ROG Ally (RC71L)

motherboard mounting screws

2.5mm and 3.0mm · confirmed · source

Lenovo Legion Go

internal cover screws

3mm · confirmed · source

Olympus 145-290 Series Endoscopes

Panhead (JCIS) screw for Knob Hub and L/R brake knob assembly

3 mm · confirmed · source

Valve Steam Deck (LCD)

case and board screws in several lengths

3, 4, 4.5, 5 and 9mm · confirmed · source

Framework Laptop 13 top cover (2024/2025)

Official top cover fastener kit lists M1.6 x 1.5 mm (x2) and M1.6 x 3.0 mm (x4) T5 fasteners

1.5mm; 3.0mm · confirmed · source