GoPro HERO mount thumbscrew screw size
M5 · 18 to 20 mm long
The screws used on GoPro HERO mount thumbscrew are M5 in lengths from 18 to 20 mm.
The record covers standard GoPro mounting thumbscrew is M5 x 0.8 (metric equivalent of 10-32); aftermarket thumbscrews sold at this size.
Head and drive, as the source states them: thumb screw (knurled) head.
This entry is marked reported and comes from storytellertech.com.
An M5 screw is 5 mm in diameter with a 0.8 mm pitch, tapped with a 4.2 mm drill; imperial look-alike: #10-32 (4.83 mm) — the other common rack thread; check before mixing.
GoPro HERO mount thumbscrew 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 |
|---|---|---|---|---|---|---|
| M5 | 18–20 mm | 0.8 mm | Thumb screw (knurled) | not stated | Standard GoPro mounting thumbscrew is M5 x 0.8 (metric equivalent of 10-32); aftermarket thumbscrews sold at this size | Reported |
Fitment records and sources
Standard GoPro mounting thumbscrew is M5 x 0.8 (metric equivalent of 10-32); aftermarket thumbscrews sold at this size
pitch 0.8 mm · tap 4.2 mm · clearance 5.5 mm · PH2 / Torx T25
How to check the screw before you buy
- Camera and optics hardware often uses short screws into thin threaded plates, so check engagement before tightening fully.
- Diameter: across the threads an M5 screw measures about 5 mm with calipers (usually a hair under). If yours measures noticeably more or less, it is a different thread.
- Pitch: 0.8 mm from one thread crest to the next (12.5 crests per centimetre). A thread pitch gauge or the pitch-gauge tool settles it in seconds.
- Length: for thumb screw (knurled) screws, measure from under the head to the tip (countersunk heads are the exception: they are measured overall).
- The records span 18–20 mm, which means different positions take different lengths — match each hole to its own screw.
- Driver: the source does not name the drive. Standard M5 heads take PH2 for Phillips and T25 for Torx, and a 4 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 M5 is about 4.0-6.0 N·m into metal threads and 1.5-2.5 N·m into plastic bosses; snug it up and stop.
Common mix-ups with M5
- GoPro also uses M5 for its classic two-prong mount thumbscrew and buckle system, while smaller GoPro chassis screws are commonly Torx-driven without a confirmed metric thread in available sources — don't conflate the mount thumbscrew size with internal chassis screws.
- The GoPro thumbscrew is often mistaken for an imperial 10-32 thread, but it is an M5 x 0.8 metric thread.
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Devices whose records share a thread with GoPro HERO mount thumbscrew, closest length match first.
- GoPro HERO action-camera mount thumbscrew/buckle system also M5 × 18–19 mm
- GoPro (all standard mounts, Hero series) also M5 × 18.5 mm
- GoPro thumbscrew/nut (scope mount project) also M5 × 18 mm
- Kayak and canoe accessory rail track also M5 × 20 mm
- GoPro Universal Car Mounts also M5 × 18.5–20 mm
- CNC router spindle clamp also M5 × 18–20 mm
- Wheelchair rear wheel axle bolts also M5 × 18–20 mm
- Ski binding insert flat-head screw kit also M5 × 18–20 mm
Questions about GoPro HERO mount thumbscrew screws
- What size screw does GoPro HERO mount thumbscrew use?
- M5 × 18–20 mm for standard GoPro mounting thumbscrew is M5 x 0.8 (metric equivalent of 10-32); aftermarket thumbscrews sold at this size.
- How long are the screws in GoPro HERO mount thumbscrew?
- The records range from 18 to 20 mm depending on the position, so match each screw to its own hole.
- What is the thread pitch of an M5 screw?
- 0.8 mm (coarse), which is the standard pitch for M5 machine screws; a 0.5 mm fine pitch exists but is uncommon. The tap drill is 4.2 mm and the normal clearance hole is 5.5 mm.
- What screwdriver do I need for GoPro HERO mount thumbscrew?
- The sources do not name the drive. For M5, Phillips heads normally take PH2 and Torx heads T25; socket heads take a 4 mm hex key.
- Can I use an imperial screw instead of M5?
- No. Imperial look-alike: #10-32 (4.83 mm) — the other common rack thread; check before mixing. Use a true M5 screw so it does not cross-thread or strip the hole.