Bosch Smart System 1-arm handlebar support (shell and clamp mounting) screw size
M4 · 12 mm long
If you are replacing a screw on Bosch Smart System 1-arm handlebar support (shell and clamp mounting), the thread is M4, 12 mm long.
The record covers screw kit for 1-arm support, Bosch Smart System e-bike motor/display mount.
This entry is marked confirmed and comes from ultrabikeworks.com.
An M4 screw is 4 mm in diameter with a 0.7 mm pitch, tapped with a 3.3 mm drill; imperial look-alike: #8-32 (4.17 mm) — the standard US PC/rack screw, close but not the same.
Bosch Smart System 1-arm handlebar support (shell and clamp mounting) 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 |
|---|---|---|---|---|---|---|
| M4 | 12 mm | 0.7 mm | not stated | not stated | Screw kit for 1-arm support, Bosch Smart System e-bike motor/display mount | Confirmed |
Fitment records and sources
Screw kit for 1-arm support, Bosch Smart System e-bike motor/display mount
pitch 0.7 mm · tap 3.3 mm · clearance 4.5 mm · PH2 / Torx T20
How to check the screw before you buy
- For a wall or arm mount, the screw has to engage the threaded insert by several turns but must not bottom out, so measure the insert depth and add the thickness of the bracket and any spacers.
- Diameter: across the threads an M4 screw measures about 4 mm with calipers (usually a hair under). If yours measures noticeably more or less, it is a different thread.
- Pitch: 0.7 mm from one thread crest to the next (14.29 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 12 mm. Going longer risks bottoming out or touching parts behind the hole; going shorter loses thread engagement.
- Driver: the source does not name the drive. Standard M4 heads take PH2 for Phillips and T20 for Torx, and a 3 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 M4 is about 2.0-3.0 N·m into metal threads and 0.8-1.4 N·m into plastic bosses; snug it up and stop.
Common mix-ups with M4
- Display mounts mix systems: the screen side is metric M4/M6, but the wall side of many mounts uses imperial wood screws such as #14 x 2.5in.
- goBILDA is metric M4; the older Actobotics/ServoCity system it resembles is imperial 6-32. The parts look alike and will strip each other.
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 Displays, TVs & Mounts
The same screw also fits
Devices whose records share a thread with Bosch Smart System 1-arm handlebar support (shell and clamp mounting), closest length match first.
- Premier Mounts PBL-UMS/PBL-UMW Universal Projector Mount also M4 × 12 mm
- Monitor VESA 75x75 / 100x100 also M4 × 12 mm
- LED downlight trim and driver also M4 × 12 mm
- LG 50PZ950U also M4 × 12 mm
- LG 55LW9500 also M4 × 12 mm
- Telescope knurled locking/tension screw for diagonals, adapters, focusers also M4 × 12 mm
- LG 60PZ950U also M4 × 12 mm
- Samsung PC490-ZA TV stand also M4 × 12 mm
Questions about Bosch Smart System 1-arm handlebar support (shell and clamp mounting) screws
- What size screw does Bosch Smart System 1-arm handlebar support (shell and clamp mounting) use?
- M4 × 12 mm for screw kit for 1-arm support, Bosch Smart System e-bike motor/display mount.
- How long are the screws in Bosch Smart System 1-arm handlebar support (shell and clamp mounting)?
- The record gives 12 mm. Measure the original from under the head (overall for a countersunk head) to confirm before ordering.
- What is the thread pitch of an M4 screw?
- 0.7 mm (coarse), which is the standard pitch for M4 machine screws; a 0.5 mm fine pitch exists but is uncommon. The tap drill is 3.3 mm and the normal clearance hole is 4.5 mm.
- What screwdriver do I need for Bosch Smart System 1-arm handlebar support (shell and clamp mounting)?
- The sources do not name the drive. For M4, Phillips heads normally take PH2 and Torx heads T20; socket heads take a 3 mm hex key.
- Can I use an imperial screw instead of M4?
- No. Imperial look-alike: #8-32 (4.17 mm) — the standard US PC/rack screw, close but not the same. Use a true M4 screw so it does not cross-thread or strip the hole.