Olympus 145-290 Series Endoscopes screw size
M1.6 · 3 mm long
Olympus 145-290 Series Endoscopes takes M1.6 metric screws, 3 mm long.
Where it is used: panhead (JCIS) screw for Knob Hub and L/R brake knob assembly.
Head and drive, as the source states them: pan head.
This entry is marked confirmed and comes from reparts.eu.
For reference, M1.6 is 1.6 mm across the threads at 0.35 mm pitch. The imperial size people confuse it with: #1-72 UNF (1.85 mm) is larger; there is no true imperial equivalent.
Olympus 145-290 Series Endoscopes 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 |
|---|---|---|---|---|---|---|
| M1.6 | 3 mm | 0.35 mm | Pan head | not stated | Panhead (JCIS) screw for Knob Hub and L/R brake knob assembly | Confirmed |
Fitment records and sources
Panhead (JCIS) screw for Knob Hub and L/R brake knob assembly
pitch 0.35 mm · tap 1.25 mm · clearance 1.8 mm · PH00 / Torx T4–T5
How to check the screw before you buy
- Keep material and finish the same as the original (often stainless) on equipment that is cleaned or sterilised.
- Diameter: across the threads an M1.6 screw measures about 1.6 mm with calipers (usually a hair under). If yours measures noticeably more or less, it is a different thread.
- Pitch: 0.35 mm from one thread crest to the next (28.57 crests per centimetre). A thread pitch gauge or the pitch-gauge tool settles it in seconds.
- Length: for pan head screws, measure from under the head to the tip (countersunk heads are the exception: they 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 M1.6 heads take PH00 for Phillips and T4–T5 for Torx, and a 1.5 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 M1.6 is about 12-20 N·cm into metal threads and 6-10 N·cm into plastic bosses; snug it up and stop.
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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M1.6 x 3mm Screws Compatible with Dell XPS 13 9340 Keyboard 10-Pack Black
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M1.6 x 3mm Screws for Dell XPS 13 9340 System Board Replacement 10-Pack Black
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ASUS ROG Strix G15 G513R Replacement Screws Sold Individually – M1.6 x 3mm, M2 x 2.5mm, M2 x 3mm, M2.5 x 6mm Phillips Wafer Head, Black
$0.10Choose size -
ASUS ROG Strix G17 G713 Replacement Screws Sold Individually – M1.6 x 3mm, M2 x 2.5mm, M2 x 3mm, M2.5 x 6mm Phillips Wafer Head, Black
$0.10Choose size
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Devices whose records share a thread with Olympus 145-290 Series Endoscopes, closest length match first.
- Dental handpiece head also M1.6 × 3 mm
- Dell Precision 5560 also M1.6 × 3 mm
- Framework Laptop 13 top cover (2024/2025) also M1.6 × 3 mm
- HP 2101036104; both pages checked, same PDF) also M1.6 × 3 mm
- HP EliteBook 840 G7 also M1.6 × 3 mm
- Lenovo M30-70 also M1.6 × 3 mm
- Lenovo Tablet X201 also M1.6 × 3 mm
- Dell Precision 5570 also M1.6 × 3 mm
Questions about Olympus 145-290 Series Endoscopes screws
- What size screw does Olympus 145-290 Series Endoscopes use?
- M1.6 × 3 mm for panhead (JCIS) screw for Knob Hub and L/R brake knob assembly.
- How long are the screws in Olympus 145-290 Series Endoscopes?
- 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 M1.6 screw?
- 0.35 mm (coarse), which is the standard pitch for M1.6 machine screws; a 0.2 mm fine pitch exists but is uncommon. The tap drill is 1.25 mm and the normal clearance hole is 1.8 mm.
- What screwdriver do I need for Olympus 145-290 Series Endoscopes?
- The sources do not name the drive. For M1.6, Phillips heads normally take PH00 and Torx heads T4–T5; socket heads take a 1.5 mm hex key.
- Can I use an imperial screw instead of M1.6?
- No. Imperial look-alike: #1-72 UNF (1.85 mm) is larger; there is no true imperial equivalent. Use a true M1.6 screw so it does not cross-thread or strip the hole.
- Where can I buy replacement screws for Olympus 145-290 Series Endoscopes?
- TechSpareWarehouse (our own store) lists M1.6 x 3mm, which matches the length in the records above.