Garmin zumo XT Motorcycle mount base plate to handlebar mount (panhead screws) screw size
M4 · 20 mm long
Garmin zumo XT Motorcycle mount base plate to handlebar mount (panhead screws) takes M4 metric screws, 20 mm long.
The record covers manual: thread the M4 x 20mm panhead screws through the mounting spacers.
Head and drive, as the source states them: pan head.
This entry is marked confirmed and comes from www8.garmin.com.
For reference, M4 is 4 mm across the threads at 0.7 mm pitch. The imperial size people confuse it with: #8-32 (4.17 mm) — the standard US PC/rack screw, close but not the same.
Garmin zumo XT Motorcycle mount base plate to handlebar mount (panhead 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 |
|---|---|---|---|---|---|---|
| M4 | 20 mm | 0.7 mm | Pan head | not stated | Manual: thread the M4 x 20mm panhead screws through the mounting spacers | Confirmed |
Fitment records and sources
Manual: thread the M4 x 20mm panhead screws through the mounting spacers
pitch 0.7 mm · tap 3.3 mm · clearance 4.5 mm · PH2 / Torx T20
How to check the screw before you buy
- Where the manufacturer publishes a torque value, use a torque driver rather than feel.
- 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: for pan head screws, measure from under the head to the tip (countersunk heads are the exception: they are measured overall).
- The record states 20 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
- Curved or textured monitor backs often need spacers or washers to clear the arm clamp.
- M4 and 6-32 UNC share a nominal diameter with different pitch — a classic cross-thread in US-market kits.
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 Vehicles, Marine & Mobility
The same screw also fits
Devices whose records share a thread with Garmin zumo XT Motorcycle mount base plate to handlebar mount (panhead screws), closest length match first.
- Motorcycle fairing panels also M4 × 20 mm
- ABB random-wound motor terminal boxes (ACS580 drive systems) also M4 × 20 mm
- LG 32LM6400 also M4 × 20 mm
- LG 47LW9500 also M4 × 20 mm
- Drum hardware wing bolt / memory lock also M4 × 20 mm
- LG 47LM7600 also M4 × 20 mm
- LG 55LV5400 also M4 × 20 mm
- LG 47LM6700 also M4 × 20 mm
Questions about Garmin zumo XT Motorcycle mount base plate to handlebar mount (panhead screws) screws
- What size screw does Garmin zumo XT Motorcycle mount base plate to handlebar mount (panhead screws) use?
- M4 × 20 mm for manual: thread the M4 x 20mm panhead screws through the mounting spacers.
- How long are the screws in Garmin zumo XT Motorcycle mount base plate to handlebar mount (panhead screws)?
- The record gives 20 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 Garmin zumo XT Motorcycle mount base plate to handlebar mount (panhead screws)?
- 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.