Akuvox A08 video doorbell (back plate) screw size
M3 · 6 mm long
If you are replacing a screw on Akuvox A08 video doorbell (back plate), the thread is M3, 6 mm long.
Where it is used: official quick guide lists 'M3X6 Torx head screw' for the back plate assembly.
Head and drive, as the source states them: Torx drive.
This entry is marked confirmed and comes from didactum-security.com.
M3 means a 3 mm nominal diameter with a 0.5 mm thread pitch. Imperial look-alike: #5-40 (3.18 mm) or #4-40 — neither interchanges with M3.
Akuvox A08 video doorbell (back plate) 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 |
|---|---|---|---|---|---|---|
| M3 | 6 mm | 0.5 mm | not stated | Torx | Official quick guide lists 'M3X6 Torx head screw' for the back plate assembly | Confirmed |
Fitment records and sources
Official quick guide lists 'M3X6 Torx head screw' for the back plate assembly
pitch 0.5 mm · tap 2.5 mm · clearance 3.4 mm · PH1 / Torx T10
How to check the screw before you buy
- Phone and wearable screws are tiny and often differ by fractions of a millimetre between positions; keep each one next to the hole it came from.
- Diameter: across the threads an M3 screw measures about 3 mm with calipers (usually a hair under). If yours measures noticeably more or less, it is a different thread.
- Pitch: 0.5 mm from one thread crest to the next (20 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 record states 6 mm. Going longer risks bottoming out or touching parts behind the hole; going shorter loses thread engagement.
- Driver: the source names a Torx drive. For comparison, standard M3 heads take PH1 (Phillips) or T10 (Torx), or a 2.5 mm hex key.
- Tightening: no device-specific torque is published in these records. The site's general figure for M3 is about 80-130 N·cm into metal threads and 35-60 N·cm into plastic bosses; snug it up and stop.
Common mix-ups with M3
- Pond/aquarium equipment manuals aimed at consumers rarely specify exact thread pitch or length for internal fasteners, since these are considered non-user-serviceable; distributor-level assembly/service manuals (e.g., Maytronics internal documents) are a better source than end-user guides.
- GoPro's own official Dive Housing user guide does not itself state a metric screw size for the housing body; only third-party accessory manufacturer (INON) manuals explicitly cite M6 screws for their add-on arms/adapters attaching to the housing.
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.
-
M3 x 6mm Replacement Screws for XLR Audio Connectors Phillips Wafer Head 50-Pack
$4.99 -
M3 x 6mm Phillips Wafer Head Carbon Steel Machine Screws for XLR Audio Connectors | 50-Pack (Black)
$4.99
-
M3 x 6mm Phillips Wafer Head Screw for 3D Printer Frame Assembly - Single Replacement Black
$0.10 each · min. 50
-
M3 x 6mm Phillips Wafer Head Screw for Boutique Guitar Pedal Enclosure - Single Replacement Black
$0.10 each · min. 50
More in Phones, Tablets & Wearables
Akuvox A08 video doorbellAnbernic RG35XX rear case screwsApple Watch case screwsApple Watch strap adapterASUS ROG Ally (RC71L)Asus ROG Ally (RC71L) back panel and M.2 2230 SSD coverASUS ROG Ally RC71L rear shellCompact smart sensor PCBsDive watch bezel insertDive watch bezelsExtech 407732 sound level meter battery cover screwEyeglass hinge repair screw
Browse all 134 in Phones, Tablets & Wearables →The same screw also fits
Devices whose records share a thread with Akuvox A08 video doorbell (back plate), closest length match first.
- Video doorbell lens bezel also M3 × 6 mm
- PlayStation 5 disc drive and shell also M3 × 6 mm
- Smart home sensor brackets also M3 × 6 mm
- TO-220 / TO-247 power semiconductor heatsink mounting also M3 × 6 mm
- Sonos One power receptacle also M3 × 6 mm
- Metcase Technomet-Control instrument enclosure also M3 × 6 mm
- Eurorack modular synthesizer cases also M3 × 6 mm
- Meade LX200 Barlow / eyepiece retaining screw also M3 × 6 mm
Questions about Akuvox A08 video doorbell (back plate) screws
- What size screw does Akuvox A08 video doorbell (back plate) use?
- M3 × 6 mm for official quick guide lists 'M3X6 Torx head screw' for the back plate assembly.
- How long are the screws in Akuvox A08 video doorbell (back plate)?
- The record gives 6 mm. Measure the original from under the head (overall for a countersunk head) to confirm before ordering.
- What is the thread pitch of an M3 screw?
- 0.5 mm (coarse), which is the standard pitch for M3 machine screws; a 0.35 mm fine pitch exists but is uncommon. The tap drill is 2.5 mm and the normal clearance hole is 3.4 mm.
- What screwdriver do I need for Akuvox A08 video doorbell (back plate)?
- The source lists a Torx drive. Standard M3 heads otherwise take PH1 (Phillips) or T10 (Torx), or a 2.5 mm hex key.
- Can I use an imperial screw instead of M3?
- No. Imperial look-alike: #5-40 (3.18 mm) or #4-40 — neither interchanges with M3. Use a true M3 screw so it does not cross-thread or strip the hole.
- Where can I buy replacement screws for Akuvox A08 video doorbell (back plate)?
- TechSpareWarehouse (our own store) lists M3 x 6mm, which matches the length in the records above.