Wurth Elektronik WA-SSTIE steel spacer stud screw size
M2.5 / M3 / M4 / M6 · 5 to 70 mm long
If you are replacing a screw on Wurth Elektronik WA-SSTIE steel spacer stud, the thread is M2.5, M3, M4 and M6 in lengths from 5 to 70 mm.
There are 4 separate fitment records for it, including PCB-to-enclosure standoff stud (M2.5), PCB-to-enclosure standoff stud (M3) and PCB-to-enclosure standoff stud (M4), plus 1 more in the table below.
4 of the 4 records are marked confirmed, drawn from 1 source (we-online.com spacer studs page).
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.
Wurth Elektronik WA-SSTIE steel spacer stud 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 | 5–70 mm | 0.45 mm | not stated | not stated | PCB-to-enclosure standoff stud | Confirmed |
| M3 | 5–70 mm | 0.5 mm | not stated | not stated | PCB-to-enclosure standoff stud | Confirmed |
| M4 | 5–70 mm | 0.7 mm | not stated | not stated | PCB-to-enclosure standoff stud | Confirmed |
| M6 | 5–70 mm | 1 mm | not stated | not stated | PCB-to-enclosure standoff stud | Confirmed |
Fitment records and sources
PCB-to-enclosure standoff stud
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
PCB-to-enclosure standoff stud
pitch 0.5 mm · tap 2.5 mm · clearance 3.4 mm · PH1 / Torx T10
PCB-to-enclosure standoff stud
pitch 0.7 mm · tap 3.3 mm · clearance 4.5 mm · PH2 / Torx T20
PCB-to-enclosure standoff stud
pitch 1 mm · tap 5 mm · clearance 6.6 mm · PH3 / Torx T30
How to check the screw before you buy
- Board standoffs and enclosure bosses set the usable length: the screw should clamp the board without bottoming in the standoff.
- Diameter: across the threads an M2.5 screw measures about 2.5 mm with calipers (usually a hair under). This device also uses M3 / M4 / M6, so measure each screw rather than assuming they match.
- 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 5–70 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 / M3 / M4 / M6
- M2.5 pitch is 0.45mm vs M3's 0.5mm and M2's 0.4mm — forcing the wrong one strips plastic bosses instantly.
- Motherboard screws must not poke past the standoff and touch traces on the back of the board.
- Grounding/earth-stud screws on hazardous-area (ATEX/IECEx) gas detectors are commonly M4 even though the enclosure body uses larger threaded glands — don't extrapolate the earth screw size to the whole unit.
- 19-inch racks are not all metric: 10-32 and 12-24 UNC are still the norm in North America, with M6 the metric/square-hole cage-nut option.
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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M2.5 x 5mm Screws Compatible with Dell XPS 14 9440 Display Assembly 10-Pack
$4.99 -
M2.5 x 5mm Phillips Wafer Head Screw for Action Camera Protective Housing - Pack of 50 Black
$4.79 each · min. 2
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M2.5 x 6mm Laptop Motherboard Replacement Screws Wafer Head 10-Pack Black
$4.99 -
10x M2.5 x 6mm Phillips Screws for Lenovo ThinkPad X131e Chromebook LCD Hinge
$4.99
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M2.5 x 8mm Screws for Retevis RT27 Radio Belt Clip 10-Pack Black Phillips
$4.99 -
M2.5 x 8mm Screws for Raspberry Pi 5 Case and PoE HAT 10-Pack Black
$4.99 -
M3 x 10mm Phillips Wafer Head Screw for 3D Printer Frame Assembly - Single Replacement Black
$0.10 each · min. 50
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M3 x 10mm Phillips Wafer Head Screw for RC Car/Truck Chassis Mount - Single Replacement Black
$0.10 each · min. 50
More in Electronics, Racks & Enclosures
The same screw also fits
Devices whose records share a thread with Wurth Elektronik WA-SSTIE steel spacer stud, closest length match first.
- 19-inch rack cage nut (light equipment) also M4 × 8–12 mm
- RCI (dormakaba) 4/7 Series electric strikes also M4 × 9.5 mm
- PXI instrument chassis rack flange also M4 × 8 mm
- MikroTik RouterBoard case also M3 × 6–12 mm
- 48280AH lithium battery pack enclosure wheels also M6 × 14 mm
- Essentra MTNSP-M3-10-3 male-to-male standoff also M3 × 10 mm
- Power-One 15kW/25kW wind interface also M6 × 16 mm
- Raymarine Axiom 2 Pro Chassis grounding lug fastener on chartplotter housing also M3 × 5 mm
Questions about Wurth Elektronik WA-SSTIE steel spacer stud screws
- What size screw does Wurth Elektronik WA-SSTIE steel spacer stud use?
- M2.5 × 5–70 mm for PCB-to-enclosure standoff stud; M3 × 5–70 mm for PCB-to-enclosure standoff stud; M4 × 5–70 mm for PCB-to-enclosure standoff stud; M6 × 5–70 mm for PCB-to-enclosure standoff stud.
- How long are the screws in Wurth Elektronik WA-SSTIE steel spacer stud?
- The records range from 5 to 70 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 Wurth Elektronik WA-SSTIE steel spacer stud?
- 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 Wurth Elektronik WA-SSTIE steel spacer stud?
- TechSpareWarehouse (our own store) lists M2.5 x 5mm, M2.5 x 6mm and M2.5 x 8mm, which match lengths in the records above.