How long are the screws in NVG bracket mount screw set (tactical helmet)?

The records range from 8 to 14 mm depending on the position, so match each screw to its own hole.

What is the thread pitch of an M3 screw?

0.5 mm (coarse), which is the standard pitch for M3 machine screws; a 0.35 mm fine pitch exists but is uncommon. The tap drill is 2.5 mm and the normal clearance hole is 3.4 mm.

What screwdriver do I need for NVG bracket mount screw set (tactical helmet)?

The sources do not name the drive. For M3, Phillips heads normally take PH1 and Torx heads T10; socket heads take a 2.5 mm hex key.

Can I use an imperial screw instead of M3?

No. Imperial look-alike: #5-40 (3.18 mm) or #4-40 — neither interchanges with M3. Use a true M3 screw so it does not cross-thread or strip the hole.

Where can I buy replacement screws for NVG bracket mount screw set (tactical helmet)?

TechSpareWarehouse (our own store) lists M3 x 8mm, M3 x 10mm and M3 x 12mm, which match lengths in the records above.

NVG bracket mount screw set (tactical helmet) screw size

M3 · 8 to 14 mm long

Our records put NVG bracket mount screw set (tactical helmet) on M3 screws in lengths from 8 to 14 mm.

The record covers fine-thread screw and post nut kit for Gentex-style NVG bracket mounts.

This entry is marked reported and comes from bradleyssurplus.com.

An M3 screw is 3 mm in diameter with a 0.5 mm pitch, tapped with a 2.5 mm drill; imperial look-alike: #5-40 (3.18 mm) or #4-40 — neither interchanges with M3.

NVG bracket mount screw set (tactical helmet) 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
M3	8–14 mm	0.5 mm	not stated	not stated	Fine-thread screw and post nut kit for Gentex-style NVG bracket mounts	Reported

Fitment records and sources

M38-14mmreported

Fine-thread screw and post nut kit for Gentex-style NVG bracket mounts

pitch 0.5 mm · tap 2.5 mm · clearance 3.4 mm · PH1 / Torx T10

Source

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 M3 screw measures about 3 mm with calipers (usually a hair under). If yours measures noticeably more or less, it is a different thread.
Pitch: 0.5 mm from one thread crest to the next (20 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 8–14 mm, which means different positions take different lengths — match each hole to its own screw.
Driver: the source does not name the drive. Standard M3 heads take PH1 for Phillips and T10 for Torx, and a 2.5 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 M3 is about 80-130 N·cm into metal threads and 35-60 N·cm into plastic bosses; snug it up and stop.

Common mix-ups with M3

Post-2018 3.5in drives have shallower bottom holes; an over-long screw can puncture the drive housing.
Only the torque spec is given (1.2 Nm), not shank length or head style — confirm length by direct measurement before ordering replacements.

Pitch gauge · Screw size finder · Torque guide

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.

M3 x 8mm Screws for Leather Spike Attachments Guitar Straps 10-Pack $4.99
M3 x 8mm Phillips Wafer Head Screw for SLA Resin 3D Printer VAT Film - Single Replacement Black $0.10 each · min. 50
M3 x 10mm Phillips Wafer Head Screw for Sim Racing Wheel Paddle Shifter - Single Replacement Black $0.10 each · min. 50
M3 x 10mm Phillips Wafer Head Screw for RC Car/Truck Chassis Mount - Single Replacement Black $0.10 each · min. 50
M3 x 12mm Phillips Wafer Head Screw for Camera Cage & Battery Slide Mount - Pack of 50 Black $6.49
M3 x 12mm Phillips Wafer Head Screw for Electric Scooter LCD Dashboard - Single Replacement Black $0.10 each · min. 50
M3 x 14mm Phillips Wafer Head Screw for Camera Cage & Battery Slide Mount - Pack of 50 Black $6.99
M3 x 14mm Phillips Wafer Head Screw for 3D Printer Extruder Stepper Motor - Single Replacement Black $0.10 each · min. 50

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The same screw also fits

Devices whose records share a thread with NVG bracket mount screw set (tactical helmet), closest length match first.

Buffalo WZR-300HP router also M3 × 8–12 mm
ifm O8 photoelectric sensor angle bracket also M3 × 14 mm
Instrument enclosure base/rear panel screws (Metcase Technomet-Control rack case) also M3 × 8 mm
Eurorack synthesiser case (Intellijel 7U Performance Case Gen 2) also M3 × 8 mm
Essentra MTNSP-M3-10-3 male-to-male standoff also M3 × 10 mm
MikroTik RouterBoard case also M3 × 8–12 mm
Wurth Elektronik WA-SSTIE steel spacer stud also M3 × 8–14 mm
Desktop switch rack-ear kits also M3 × 8 mm

Questions about NVG bracket mount screw set (tactical helmet) screws

What size screw does NVG bracket mount screw set (tactical helmet) use?: M3 × 8–14 mm for fine-thread screw and post nut kit for Gentex-style NVG bracket mounts.
How long are the screws in NVG bracket mount screw set (tactical helmet)?: The records range from 8 to 14 mm depending on the position, so match each screw to its own hole.
What is the thread pitch of an M3 screw?: 0.5 mm (coarse), which is the standard pitch for M3 machine screws; a 0.35 mm fine pitch exists but is uncommon. The tap drill is 2.5 mm and the normal clearance hole is 3.4 mm.
What screwdriver do I need for NVG bracket mount screw set (tactical helmet)?: The sources do not name the drive. For M3, Phillips heads normally take PH1 and Torx heads T10; socket heads take a 2.5 mm hex key.
Can I use an imperial screw instead of M3?: No. Imperial look-alike: #5-40 (3.18 mm) or #4-40 — neither interchanges with M3. Use a true M3 screw so it does not cross-thread or strip the hole.
Where can I buy replacement screws for NVG bracket mount screw set (tactical helmet)?: TechSpareWarehouse (our own store) lists M3 x 8mm, M3 x 10mm and M3 x 12mm, which match lengths in the records above.

Heads up: shipping delay