Amiga 500 rear/front case screws (Retro32 replacement set) screw size
M3 · 8 mm long
The screws used on Amiga 500 rear/front case screws (Retro32 replacement set) are M3, 8 mm long.
The record covers replacement hardware kit description lists '6 x M3 8mm Philips head screws (black) – Rear case (can also be used at front)' as part of a full Amiga 500 case screw set.
This entry is marked confirmed and comes from retro32.com.
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.
Amiga 500 rear/front case screws (Retro32 replacement set) 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 | 8 mm | 0.5 mm | not stated | not stated | Replacement hardware kit description lists '6 x M3 8mm Philips head screws (black) – Rear case (can also be used at front)' as part of a full Amiga 500 case screw setblack finish | Confirmed |
Fitment records and sources
Replacement hardware kit description lists '6 x M3 8mm Philips head screws (black) – Rear case (can also be used at front)' as part of a full Amiga 500 case screw set.
pitch 0.5 mm · tap 2.5 mm · clearance 3.4 mm · PH1 / Torx T10
How to check the screw before you buy
- Take one original screw out first and measure it before ordering; the record above tells you the thread, the original screw tells you the exact length and head.
- 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 8 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
- Cleanroom/vacuum-rated M3 screws (titanium, vented, low-outgas) from NBK are a distinct specialty class, priced and sourced very differently from commodity M3 hardware — do not substitute one for the other in semiconductor fixtures.
- Camera and tripod mounting threads themselves are imperial 1/4in-20 or 3/8in-16 — the metric M2-M4 screws in rig kits are only for the accessory hardware, not the tripod mount.
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 Amiga 500 rear/front case screws (Retro32 replacement set), closest length match first.
- PSU internals & fan grilles also M3 × 8 mm
- Kern PFB precision balance internal hardware also M3 × 8 mm
- Arduino Uno / Mega also M3 × 8 mm
- Eschmann LS5 / SES2555 autoclave also M3 × 8 mm
- 2020 aluminium extrusion T-nuts also M3 × 8 mm
- Kenwood TK-8302 transceiver also M3 × 8 mm
- Third-party Raspberry Pi cases & HAT stacks also M3 × 8 mm
- Pumpkin SUPERNOVA 6U CubeSat Structure Kit also M3 × 8 mm
Questions about Amiga 500 rear/front case screws (Retro32 replacement set) screws
- What size screw does Amiga 500 rear/front case screws (Retro32 replacement set) use?
- M3 × 8 mm for replacement hardware kit description lists '6 x M3 8mm Philips head screws (black) – Rear case (can also be used at front)' as part of a full Amiga 500 case screw set.
- How long are the screws in Amiga 500 rear/front case screws (Retro32 replacement set)?
- The record gives 8 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 Amiga 500 rear/front case screws (Retro32 replacement set)?
- 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 Amiga 500 rear/front case screws (Retro32 replacement set)?
- TechSpareWarehouse (our own store) lists M3 x 8mm, which matches the length in the records above.