JUKI sewing machine needle clamp screw screw size
M3 · 3 mm long
Our records put JUKI sewing machine needle clamp screw on M3 screws, 3 mm long.
It is listed for goldStar Tool sells 'Needle Clamp Screw M3x3' for JUKI sewing machines, part SM-8030312-TP.
This entry is marked confirmed and comes from goldstartool.com.
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.
JUKI sewing machine needle clamp 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.
| Thread | Length | Pitch | Head | Drive | Where it goes | Status |
|---|---|---|---|---|---|---|
| M3 | 3 mm | 0.5 mm | not stated | not stated | GoldStar Tool sells 'Needle Clamp Screw M3x3' for JUKI sewing machines, part SM-8030312-TP | Confirmed |
Fitment records and sources
GoldStar Tool sells 'Needle Clamp Screw M3x3' for JUKI sewing machines, part SM-8030312-TP
pitch 0.5 mm · tap 2.5 mm · clearance 3.4 mm · PH1 / Torx T10
How to check the screw before you buy
- Check the strength class stamped on the head (8.8, 10.9, A2-70) and replace like for like.
- 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 3 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
- Some sewing-machine screws are labeled with metric-looking but slightly nonstandard sizes (e.g. M3.3) that are not true ISO M3 and are not interchangeable with standard M3 hardware.
- Power-tool gearcase and clamshell screws are usually thread-forming (marked "ST") even when the parts list gives an M-size — a normal machine screw of the same size may not hold in the plastic boss.
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 JUKI sewing machine needle clamp screw, closest length match first.
- Motherboard to case standoffs also M3 × 3 mm
- JUKI industrial sewing machine needle clamp screw (SM-8030312-TP) also M3 × 3 mm
- NAS drive trays (Synology / QNAP) also M3 × 3 mm
- Dell Inspiron 15 3593 also M3 × 3 mm
- HP Compaq nx8420 also M3 × 3 mm
- Dell Inspiron 15 3590 also M3 × 3 mm
- Lenovo G510 also M3 × 3 mm
- Lenovo IdeaPad S210 Touch also M3 × 3 mm
Questions about JUKI sewing machine needle clamp screw screws
- What size screw does JUKI sewing machine needle clamp screw use?
- M3 × 3 mm for goldStar Tool sells 'Needle Clamp Screw M3x3' for JUKI sewing machines, part SM-8030312-TP.
- How long are the screws in JUKI sewing machine needle clamp screw?
- The record gives 3 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 JUKI sewing machine needle clamp 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 JUKI sewing machine needle clamp screw?
- TechSpareWarehouse (our own store) lists M3 x 3mm, which matches the length in the records above.