Alpha Series performance display (forklift) screw size
M4 · 14 mm long
Our records put Alpha Series performance display (forklift) on M4 screws, 14 mm long.
The record covers hex socket screws securing display to mast bracket.
Head and drive, as the source states them: Hex socket (Allen) drive.
This entry is marked confirmed and comes from media1.svb-media.de.
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.
Alpha Series performance display (forklift) 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 | 14 mm | 0.7 mm | not stated | Hex socket (Allen) | hex socket screws securing display to mast bracket | Confirmed |
Fitment records and sources
hex socket screws securing display to mast bracket
pitch 0.7 mm · tap 3.3 mm · clearance 4.5 mm · PH2 / Torx T20
How to check the screw before you buy
- VESA holes are threaded inserts in the back cover; if a screw stops early, back it out rather than forcing it, because a bottomed-out screw can crack the panel housing.
- 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 14 mm. Going longer risks bottoming out or touching parts behind the hole; going shorter loses thread engagement.
- Driver: the source names a Hex socket (Allen) drive. For comparison, standard M4 heads take PH2 (Phillips) or T20 (Torx), or a 3 mm hex key.
- 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.
- Dashcam mounts advertised as '1/4" M4 screw joint' have two different threads: the 1/4"-20 camera thread and a separate M4 grub screw for the ball joint — don't order the wrong one.
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Devices whose records share a thread with Alpha Series performance display (forklift), closest length match first.
- TV back panel also M4 × 14 mm
- Speaker grille and handle hardware also M4 × 14 mm
- GCX 75/100mm VESA flush display mount also M4 × 14 mm
- Amico patient monitor 5-inch shelf with VESA plate also M4 × 14 mm
- Atdec Telehook TH-2250-VF display wall mount also M4 × 14 mm
- Telescope knurled locking/tension screw for diagonals, adapters, focusers also M4 × 14 mm
- LED downlight trim and driver also M4 × 14 mm
- Raymarine Alpha Series Display Mast Bracket also M4 × 14 mm
Questions about Alpha Series performance display (forklift) screws
- What size screw does Alpha Series performance display (forklift) use?
- M4 × 14 mm for hex socket screws securing display to mast bracket.
- How long are the screws in Alpha Series performance display (forklift)?
- The record gives 14 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 Alpha Series performance display (forklift)?
- The source lists a Hex socket (Allen) drive. Standard M4 heads otherwise take PH2 (Phillips) or T20 (Torx), or 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.