Raymarine Axiom 2 Pro Chassis grounding lug fastener on chartplotter housing screw size
M3 · 5 mm long
Our records put Raymarine Axiom 2 Pro Chassis grounding lug fastener on chartplotter housing on M3 screws, 5 mm long.
The record covers screw with spring washer and crimp terminal for the optional grounding connection.
This entry is marked confirmed and comes from raymarine-shop.nl.
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.
Raymarine Axiom 2 Pro Chassis grounding lug fastener on chartplotter housing 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 | 5 mm | 0.5 mm | not stated | not stated | Screw with spring washer and crimp terminal for the optional grounding connectionwasher / flange face | Confirmed |
Fitment records and sources
Screw with spring washer and crimp terminal for the optional grounding connection
pitch 0.5 mm · tap 2.5 mm · clearance 3.4 mm · PH1 / Torx T10
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 record states 5 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 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
- The bioprinter M3 reference is a tube-connector thread spec, not a structural chassis screw; verify before assuming interchangeability with fastener screws.
- DIN-rail terminal blocks are near-universally M3 across Dinkle, TE, Omron and RND, but torque differs (0.5-0.8 Nm) — over-torquing an M3 terminal screw strips it instantly.
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.
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Devices whose records share a thread with Raymarine Axiom 2 Pro Chassis grounding lug fastener on chartplotter housing, closest length match first.
- Wurth Elektronik WA-SSTIE steel spacer stud also M3 × 5 mm
- External 3.5in HDD enclosures also M3 × 5 mm
- Mean Well NMP650 / NMP1K2 modular power supply also M3 × 5 mm
- PCIe slot covers & rear brackets also M3 × 5 mm
- Wurth Elektronik WA-SPAIE plastic spacer stud also M3 × 5 mm
- GPU rear bracket anchor also M3 × 5 mm
- Network switch & patch panel internals also M3 × 5 mm
- UCTRONICS U6264 1U Raspberry Pi rack mount also M3 × 5 mm
Questions about Raymarine Axiom 2 Pro Chassis grounding lug fastener on chartplotter housing screws
- What size screw does Raymarine Axiom 2 Pro Chassis grounding lug fastener on chartplotter housing use?
- M3 × 5 mm for screw with spring washer and crimp terminal for the optional grounding connection.
- How long are the screws in Raymarine Axiom 2 Pro Chassis grounding lug fastener on chartplotter housing?
- The record gives 5 mm. Measure the original from under the head (overall for a countersunk head) to confirm before ordering.
- 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 Raymarine Axiom 2 Pro Chassis grounding lug fastener on chartplotter housing?
- 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 Raymarine Axiom 2 Pro Chassis grounding lug fastener on chartplotter housing?
- TechSpareWarehouse (our own store) lists M3 x 5mm, which matches the length in the records above.