NovAtel OEM719 / OEM729 / OEM7700 / OEM7720 GNSS boards screw size
M3 · length not stated in the sources
NovAtel OEM719 / OEM729 / OEM7700 / OEM7720 GNSS boards takes M3 metric screws. None of the sources we found gives an exact length, so measure the original before you order.
It is listed for receiver card mounting holes (max head diameter 7.5mm).
This entry is marked confirmed and comes from NovAtel OEM7 Installation and Operation User Manual OM-20000.
For reference, M3 is 3 mm across the threads at 0.5 mm pitch. The imperial size people confuse it with: #5-40 (3.18 mm) or #4-40 — neither interchanges with M3.
NovAtel OEM719 / OEM729 / OEM7700 / OEM7720 GNSS boards 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 | not stated | 0.5 mm | not stated | not stated | receiver card mounting holes (max head diameter 7.5mm) | Confirmed |
Fitment records and sources
receiver card mounting holes (max head diameter 7.5mm)
pitch 0.5 mm · tap 2.5 mm · clearance 3.4 mm · PH1 / Torx T10
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 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.
- 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
- M3 (3.0mm, 0.5mm pitch) is not #6-32 UNC (~3.5mm) — they look identical and cross-thread, the single most common PC-building mistake.
More in Vehicles, Marine & Mobility
The same screw also fits
Devices whose records share a thread with NovAtel OEM719 / OEM729 / OEM7700 / OEM7720 GNSS boards, closest length match first.
- Scope / rail mount base screws (small metric) also M3
- Shimano BL-M785 hydraulic brake lever also M3
- Fishing reel handle retainer also M3
- E-scooter stem and controller housing also M3
- Wago 869-136 terminal strip also M3
- WAGO 869-133 / 869-136 DIN-rail terminal strip also M3
- Gotrax electric scooter assembly screw also M3
- Glider radio panel mounting screw also M3
Questions about NovAtel OEM719 / OEM729 / OEM7700 / OEM7720 GNSS boards screws
- What size screw does NovAtel OEM719 / OEM729 / OEM7700 / OEM7720 GNSS boards use?
- M3 for receiver card mounting holes (max head diameter 7.5mm).
- How long are the screws in NovAtel OEM719 / OEM729 / OEM7700 / OEM7720 GNSS boards?
- None of the sources states a length. Remove one screw and measure it from under the head to the tip (overall for a countersunk head).
- 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 NovAtel OEM719 / OEM729 / OEM7700 / OEM7720 GNSS boards?
- 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.