NVG shroud / helmet bracket hardware (Gentex-style 3-hole) screw size
M2.5 · 10 to 13 mm long
Our records put NVG shroud / helmet bracket hardware (Gentex-style 3-hole) on M2.5 screws in lengths from 10 to 13 mm.
It is listed for aftermarket replacement fine-thread screw and post-nut sets for ACH/ballistic helmet NVG shrouds.
This entry is marked reported.
M2.5 means a 2.5 mm nominal diameter with a 0.45 mm thread pitch. Imperial look-alike: #3-48 / #4-40 (2.51 / 2.84 mm) — #4-40 is the common US stand-in and it will NOT thread in.
NVG shroud / helmet bracket hardware (Gentex-style 3-hole) 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 |
|---|---|---|---|---|---|---|
| M2.5 | 10–13 mm | 0.45 mm | not stated | not stated | Aftermarket replacement fine-thread screw and post-nut sets for ACH/ballistic helmet NVG shrouds | Reported |
Fitment records and sources
Aftermarket replacement fine-thread screw and post-nut sets for ACH/ballistic helmet NVG shrouds
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
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 M2.5 screw measures about 2.5 mm with calipers (usually a hair under). If yours measures noticeably more or less, it is a different thread.
- Pitch: 0.45 mm from one thread crest to the next (22.22 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 10–13 mm, which means different positions take different lengths — match each hole to its own screw.
- Driver: the source does not name the drive. Standard M2.5 heads take PH1 for Phillips and T8 for Torx, and a 2 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 M2.5 is about 45-70 N·cm into metal threads and 20-35 N·cm into plastic bosses; snug it up and stop.
Common mix-ups with M2.5
- M2.5 pitch is 0.45mm vs M3's 0.5mm and M2's 0.4mm — forcing the wrong one strips plastic bosses instantly.
- M2.5 and M3 look the same to the naked eye — you need calipers on the shank to tell them apart.
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.
-
M2.5 x 10mm Phillips Wafer Head Screw for Turntable Cartridge Headshell Mount - Pack of 50 Black
$5.99 -
M2.5 x 10mm Phillips Wafer Head Screw for ASUS TUF Gaming A15/F15 Laptop Repair - Single Replacement Black
$0.10 each · min. 50
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10x M2.5 x 11mm Phillips Screws for HP EliteBook 840 G6 846 G6 LCD Hinge
$4.99
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M2.5 x 12mm Phillips Wafer Head Screw for Turntable Cartridge Headshell Mount - Pack of 50 Black
$6.49 -
M2.5 x 12mm Phillips Wafer Head Screw for Laptop Bottom Cover Replacement - Single Replacement Black
$0.10 each · min. 50
-
M2.5 x 10mm Phillips Wafer Head Screw for Laptop Bottom Cover Replacement - Single Replacement Black
$0.10 each · min. 50
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Devices whose records share a thread with NVG shroud / helmet bracket hardware (Gentex-style 3-hole), closest length match first.
- nVent SCHROFF instrument/enclosure collar panhead screw also M2.5 × 12.3 mm
- Raspberry Pi HAT mounting kit also M2.5 × 11 mm
- Wurth Elektronik WA-SPAIE plastic spacer stud also M2.5 × 10–13 mm
- Essentra MTNSP-M2.5-11-3 male-to-male standoff also M2.5 × 11 mm
- Wurth Elektronik WA-SSTIE steel spacer stud also M2.5 × 10–13 mm
- Raspberry Pi HAT+ specification also M2.5 × 11 mm
- Dell Latitude D800 also M2.5 × 12 mm
- Tripod head quick-release plate lock also M2.5 × 10–13 mm
Questions about NVG shroud / helmet bracket hardware (Gentex-style 3-hole) screws
- What size screw does NVG shroud / helmet bracket hardware (Gentex-style 3-hole) use?
- M2.5 × 10–13 mm for aftermarket replacement fine-thread screw and post-nut sets for ACH/ballistic helmet NVG shrouds.
- How long are the screws in NVG shroud / helmet bracket hardware (Gentex-style 3-hole)?
- The records range from 10 to 13 mm depending on the position, so match each screw to its own hole.
- What is the thread pitch of an M2.5 screw?
- 0.45 mm (coarse), which is the standard pitch for M2.5 machine screws; a 0.35 mm fine pitch exists but is uncommon. The tap drill is 2.05 mm and the normal clearance hole is 2.9 mm.
- What screwdriver do I need for NVG shroud / helmet bracket hardware (Gentex-style 3-hole)?
- The sources do not name the drive. For M2.5, Phillips heads normally take PH1 and Torx heads T8; socket heads take a 2 mm hex key.
- Can I use an imperial screw instead of M2.5?
- No. Imperial look-alike: #3-48 / #4-40 (2.51 / 2.84 mm) — #4-40 is the common US stand-in and it will NOT thread in. Use a true M2.5 screw so it does not cross-thread or strip the hole.
- Where can I buy replacement screws for NVG shroud / helmet bracket hardware (Gentex-style 3-hole)?
- TechSpareWarehouse (our own store) lists M2.5 x 10mm, M2.5 x 11mm and M2.5 x 12mm, which match lengths in the records above.