AMD AM4 CPU cooler mounting kit (be quiet!) screw size
M3 · 15 mm long
If you are replacing a screw on AMD AM4 CPU cooler mounting kit (be quiet!), the thread is M3, 15 mm long.
The record covers official be quiet! AM4 mounting kit manual instructs affixing the cooler using 'the AM4 M3x15 screws' from the rear of the motherboard backplate.
This entry is marked confirmed and comes from en.manual.ly.
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.
AMD AM4 CPU cooler mounting kit (be quiet!) 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 | 15 mm | 0.5 mm | not stated | not stated | Official be quiet! AM4 mounting kit manual instructs affixing the cooler using 'the AM4 M3x15 screws' from the rear of the motherboard backplate | Confirmed |
Fitment records and sources
Official be quiet! AM4 mounting kit manual instructs affixing the cooler using 'the AM4 M3x15 screws' from the rear of the motherboard backplate.
pitch 0.5 mm · tap 2.5 mm · clearance 3.4 mm · PH1 / Torx T10
How to check the screw before you buy
- Laptop covers and brackets often mix two or three lengths of the same thread, so lay the screws out in the order they came out (a magnetic mat or a sheet of paper with the hole pattern drawn on it works).
- 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 15 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
- Intel's ATX and microATX specs never state a metric standoff thread; PC motherboard standoffs are usually imperial 6-32, and PC fan screws are commonly 6-32 self-tapping.
- Motherboard screws must not poke past the standoff and touch traces on the back of the board.
More in Laptops & PCs
The same screw also fits
Devices whose records share a thread with AMD AM4 CPU cooler mounting kit (be quiet!), closest length match first.
- ISO 14581 hexalobular (Torx) countersunk screw also M3 × 15 mm
- PC case & radiator fans also M3 × 15 mm
- NBK cleanroom vented captive-washer screw (SVSI1S-M3-PC) also M3 × 15 mm
- PC watercooling radiator fan screws also M3 × 15 mm
- Bambu Lab AMS unit also M3 × 15 mm
- Prusa MK3S extruder also M3 × 15 mm
- Omron E3T ultracompact photoelectric sensor (used for conveyor/AGV object detection) also M3 × 15 mm
- 2020 aluminium extrusion T-nuts also M3 × 15 mm
Questions about AMD AM4 CPU cooler mounting kit (be quiet!) screws
- What size screw does AMD AM4 CPU cooler mounting kit (be quiet!) use?
- M3 × 15 mm for official be quiet! AM4 mounting kit manual instructs affixing the cooler using 'the AM4 M3x15 screws' from the rear of the motherboard backplate.
- How long are the screws in AMD AM4 CPU cooler mounting kit (be quiet!)?
- The record gives 15 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 AMD AM4 CPU cooler mounting kit (be quiet!)?
- 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.