M1.6 x 4mm screws — what they fit & where to buy
101 sourced applications in this database list a M1.6 screw at 4 mm (or a length range that includes it), most of them in laptops & pcs. A M1.6 x 4mm screw has a 0.35 mm coarse pitch, so a fully engaged 4 mm shank gives about 11.4 thread turns (2.5× the diameter).
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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M1.6 x 4mm Screws Compatible with Dell XPS 14 9440 Battery System Board 10-Pack
$4.99 -
M1.6 x 4mm Phillips Wafer Head Micro Screws LCD Shell Repair 10-Pack
$4.99
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M1.6 x 4mm Screws for Dell XPS 14 9440 Display Assembly – 10-Pack Black
$4.99
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M1.6 x 4mm Phillips Wafer Head Screw for Digital Camera Lens Ring Repair - Pack of 50 Black
$4.99 -
M1.6 Phillips Flat Head Carbon Steel Machine Screws (Multiple Lengths & Finishes)
$0.05Choose size -
M1.6 Phillips Flat Head Carbon Steel Machine Screws (Multiple Lengths & Finishes) | 50-Pack
From $4.99Choose size
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ASUS ROG Strix G15 G513R Replacement Screws Sold Individually – M1.6 x 3mm, M2 x 2.5mm, M2 x 3mm, M2.5 x 6mm Phillips Wafer Head, Black
$0.10Choose size -
ASUS ROG Strix G17 G713 Replacement Screws Sold Individually – M1.6 x 3mm, M2 x 2.5mm, M2 x 3mm, M2.5 x 6mm Phillips Wafer Head, Black
$0.10Choose size
M1.6 x 4mm specs
- Thread
- M1.6 × 0.35
- Length
- 4 mm
- Thread turns
- ≈ 11.4
- Length ÷ diameter
- 2.5×
- 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 3 mm (198 applications).Going 0.5 mm too long can bottom out in a blind boss or touch a board underneath.
Where M1.6 x 4mm screws are used
- Laptops & PCs75
- Phones, Tablets & Wearables7
- Cameras & Optics5
- Drones, RC & Gimbals4
- Eyewear2
- Medical & Laboratory2
- Standards & References2
- Electronics, Racks & Enclosures1
Devices that use M1.6 x 4mm screws (101)
2.5 x 1.6 x 4.0mm sunglasses hinge screw standard
4mm · confirmed · source
2.0mm-head mini screws sold with 1.2/1.4mm variants
2-4mm · reported · source
general electronics assembly and DIY project boards
3-8mm · confirmed · source
thick acetate and rimless frame hinges, per ISO 11381
3-5mm · confirmed · source
holds the specimen stage clips or condenser assembly
3-6mm · reported · source
M1.6x4mm motor fixing screws for whoop-class motors
4mm · confirmed · source
Head 3.0mm diameter, 0.96mm high — the countersunk profile for micro fasteners
2-10mm · confirmed · source
1.6mm diameter, 0.53mm pitch plastic thread-forming screw
4mm · confirmed · source
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
Listing explicitly gives motor fixing screw sizes 'M1.4-3, M1.6-4' (M1.6 x 4mm) for BETAFPV Meteor/Air/Cetus brushless whoop motors
M1.6x4 · reported · source
M1.6 nominal thread offered within NBK SSCZS miniature captive screw range for precision-instrument assemblies
4-10mm · confirmed · source
Apple official screw chart lists part 922-9657 as 'Screw, Torx T5, M1.6 x 4.1, H3.2' for fan attachment under I/O cable
4.1mm · confirmed · source
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
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
M1.6 x 4mm and M1.6 x 6mm socket cap screws for electron-microscope stage inserts
4-6mm · confirmed · source
M1.6 x 3mm and M1.6 x 5mm screws listed in the structure fastener table
3-5mm · confirmed · source
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
M1.6C replacement socket cap screw set, M1.6x4mm and M1.6x6mm stainless
4mm, 6mm · likely · source
case and board screws in several lengths
3, 4, 4.5, 5 and 9mm · confirmed · source
fastener kit screw (official Framework fastener kit) — T5 head, 4.0mm long (official fastener guide)
4.0mm · confirmed · source