What size screw does Car interior trim and dash panel screws use?

M3 × 8–12 mm for small trim panel and dash bracket fasteners on most makes.

How long are the screws in Car interior trim and dash panel screws?

The records range from 8 to 12 mm depending on the position, so match each screw to its own hole.

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 Car interior trim and dash panel screws?

The sources do not name the drive. For M3, Phillips heads normally take PH1 and Torx heads T10; socket heads take 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 Car interior trim and dash panel screws?

TechSpareWarehouse (our own store) lists M3 x 8mm, M3 x 10mm and M3 x 12mm, which match lengths in the records above.

Car interior trim and dash panel screws screw size

M3 · 8 to 12 mm long

Car interior trim and dash panel screws takes M3 metric screws in lengths from 8 to 12 mm.

The record covers small trim panel and dash bracket fasteners on most makes.

This entry is marked reported.

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.

Car interior trim and dash panel screws 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	8–12 mm	0.5 mm	not stated	not stated	Small trim panel and dash bracket fasteners on most makes	Reported

Fitment records and sources

M38-12mmreported

Small trim panel and dash bracket fasteners on most makes

pitch 0.5 mm · tap 2.5 mm · clearance 3.4 mm · PH1 / Torx T10

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 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 records span 8–12 mm, which means different positions take different lengths — match each hole to its own screw.
Driver: the source does not name the drive. Standard M3 heads take PH1 for Phillips and T10 for Torx, and a 2.5 mm hex key for socket heads; 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 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

Thor Zone Nanoq S case mixes metric M3 (various lengths: 4, 5, 6, 10, 13, 20mm) and imperial #6-32 UNC fasteners across the same build, so builders must sort hardware carefully rather than assuming an all-metric kit.
Thorlabs' 16mm cage system standard plates use dual 4-40 (UNC) and M3 taps on the same plate (e.g., SP01), so metric and imperial fasteners are both valid depending on the region/kit purchased.

Pitch gauge · Screw size finder · Torque guide

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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The same screw also fits

Devices whose records share a thread with Car interior trim and dash panel screws, closest length match first.

Linksys E7350 router also M3 × 8–10 mm
UniFi switch / access point wall bracket also M3 × 8–10 mm
GCX Barcode Scanner Adapter mounting kit also M3 × 8 mm
cab Applicator A3200 print-and-apply labeling system (packaging line hardware) also M3 × 8–12 mm
Rack blanking panels and front handles also M3 × 8–10 mm
Allen & Heath ZED mixer rack ear kit AP7956 also M3 × 8 mm
Linksys WRT54G2 router also M3 × 8–10 mm
Eurorack module panel mounting also M3 × 8–10 mm

Questions about Car interior trim and dash panel screws screws

What size screw does Car interior trim and dash panel screws use?: M3 × 8–12 mm for small trim panel and dash bracket fasteners on most makes.
How long are the screws in Car interior trim and dash panel screws?: The records range from 8 to 12 mm depending on the position, so match each screw to its own hole.
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 Car interior trim and dash panel screws?: The sources do not name the drive. For M3, Phillips heads normally take PH1 and Torx heads T10; socket heads take 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 Car interior trim and dash panel screws?: TechSpareWarehouse (our own store) lists M3 x 8mm, M3 x 10mm and M3 x 12mm, which match lengths in the records above.

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