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Wurth Elektronik WA-HEX hexagonal lock screw screw size

M3 · 10 to 18.2 mm long

If you are replacing a screw on Wurth Elektronik WA-HEX hexagonal lock screw, the thread is M3 in lengths from 10 to 18.2 mm.

Where it is used: D-Sub connector panel jackscrew.

This entry is marked confirmed and comes from we-online.com spacer studs page.

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.

Wurth Elektronik WA-HEX hexagonal lock screw 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.

ThreadLengthPitchHeadDriveWhere it goesStatus
M310–18.2 mm0.5 mmnot statednot statedD-Sub connector panel jackscrewConfirmed

Fitment records and sources

M310-18.2mmconfirmed

D-Sub connector panel jackscrew

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

Source: we-online.com spacer studs page

How to check the screw before you buy

  1. Board standoffs and enclosure bosses set the usable length: the screw should clamp the board without bottoming in the standoff.
  2. 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.
  3. 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.
  4. Length: measure from under the head to the tip for pan, button, wafer and cap heads; countersunk (flat) heads are measured overall.
  5. The records span 10–18.2 mm, which means different positions take different lengths — match each hole to its own screw.
  6. 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.
  7. 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.
  • 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.

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.

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The same screw also fits

Devices whose records share a thread with Wurth Elektronik WA-HEX hexagonal lock screw, closest length match first.

Questions about Wurth Elektronik WA-HEX hexagonal lock screw screws

What size screw does Wurth Elektronik WA-HEX hexagonal lock screw use?
M3 × 10–18.2 mm for D-Sub connector panel jackscrew.
How long are the screws in Wurth Elektronik WA-HEX hexagonal lock screw?
The records range from 10 to 18.2 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 Wurth Elektronik WA-HEX hexagonal lock screw?
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 Wurth Elektronik WA-HEX hexagonal lock screw?
TechSpareWarehouse (our own store) lists M3 x 10mm, M3 x 12mm and M3 x 14mm, which match lengths in the records above.