Arduino / small PCB stacks screw size
M1.2 · 3 to 6 mm long
Arduino / small PCB stacks takes M1.2 metric screws in lengths from 3 to 6 mm.
Where it is used: standoff screws for shield stacking.
This entry is marked reported and comes from newegg.com.
An M1.2 screw is 1.2 mm in diameter with a 0.25 mm pitch, tapped with a 0.95 mm drill; imperial look-alike: #0-80 UNF (1.52 mm) is the closest imperial screw, but it is bigger — not a substitute.
Arduino / small PCB stacks 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.
| Thread | Length | Pitch | Head | Drive | Where it goes | Status |
|---|---|---|---|---|---|---|
| M1.2 | 3–6 mm | 0.25 mm | not stated | not stated | standoff screws for shield stacking | Reported |
Fitment records and sources
standoff screws for shield stacking
pitch 0.25 mm · tap 0.95 mm · clearance 1.4 mm · PH000 / JIS 00 / Torx T1–T2
How to check the screw before you buy
- Rack and enclosure hardware mixes metric and imperial (#8-32, #10-32, #6-32), so confirm the thread before forcing a screw.
- Diameter: across the threads an M1.2 screw measures about 1.2 mm with calipers (usually a hair under). If yours measures noticeably more or less, it is a different thread.
- Pitch: 0.25 mm from one thread crest to the next (40 crests per centimetre). A thread pitch gauge or the pitch-gauge tool settles it in seconds.
- Length: measure from under the head to the tip for pan, button, wafer and cap heads; countersunk (flat) heads are measured overall.
- The records span 3–6 mm, which means different positions take different lengths — match each hole to its own screw.
- Driver: the source does not name the drive. Standard M1.2 heads take PH000 / JIS 00 for Phillips and T1–T2 for Torx; a bit that fits loosely will cam out and strip the head.
- Tightening: no device-specific torque is published in these records. The site's general figure for M1.2 is about 5-8 N·cm into metal threads and 3-5 N·cm into plastic bosses; snug it up and stop.
Common mix-ups with M1.2
- M1.2 and M1.4 look identical in an eyeglass repair kit — the wrong one strips soft acetate or metal hinges.
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.
More in Electronics, Racks & Enclosures
The same screw also fits
Devices whose records share a thread with Arduino / small PCB stacks, closest length match first.
- Ultrabook internals also M1.2 × 3 mm
- Wireless earbud charging case hinge also M1.2 × 3 mm
- Watch strap keepers also M1.2 × 3–4 mm
- Anbernic RG35XX rear case screws also M1.2 × 3–4 mm
- Micro FPV / tiny-whoop drones also M1.2 × 3–6 mm
- FPV camera lens mounts also M1.2 × 3–4 mm
- NBK SPE-MC PEEK micro pan head screws also M1.2 × 3–6 mm
- HP ProBook 635 Aero G8 also M1.2 × 3 mm
Questions about Arduino / small PCB stacks screws
- What size screw does Arduino / small PCB stacks use?
- M1.2 × 3–6 mm for standoff screws for shield stacking.
- How long are the screws in Arduino / small PCB stacks?
- The records range from 3 to 6 mm depending on the position, so match each screw to its own hole.
- What is the thread pitch of an M1.2 screw?
- 0.25 mm (coarse), which is the standard pitch for M1.2 machine screws. The tap drill is 0.95 mm and the normal clearance hole is 1.4 mm.
- What screwdriver do I need for Arduino / small PCB stacks?
- The sources do not name the drive. For M1.2, Phillips heads normally take PH000 / JIS 00 and Torx heads T1–T2.
- Can I use an imperial screw instead of M1.2?
- No. Imperial look-alike: #0-80 UNF (1.52 mm) is the closest imperial screw, but it is bigger — not a substitute. Use a true M1.2 screw so it does not cross-thread or strip the hole.