How long are the screws in Milwaukee M18/M12 charger and cordless tool internals?

The records range from 8 to 16 mm depending on the position, so match each screw to its own hole.

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 Milwaukee M18/M12 charger and cordless tool internals?

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 Milwaukee M18/M12 charger and cordless tool internals?

TechSpareWarehouse (our own store) lists M3 x 8mm, M3 x 10mm and M3 x 12mm, which match lengths in the records above.

Milwaukee M18/M12 charger and cordless tool internals screw size

M3 · 8 to 16 mm long

If you are replacing a screw on Milwaukee M18/M12 charger and cordless tool internals, the thread is M3 in lengths from 8 to 16 mm.

It is listed for official Milwaukee Service Parts List for M18/M12 Gangbox Rapid Charger specifies 'M3 x 8mm Pan Hd. T-10 Screw' (part 05-81-1195, qty 33) for top housing assembly; M18 Fuel Impact Drill service parts list specifies 'M3 x 16mm Pan...' screw (part 06-82-6351).

Head and drive, as the source states them: pan head.

This entry is marked confirmed and comes from documents.milwaukeetool.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.

Milwaukee M18/M12 charger and cordless tool internals 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	8–16 mm	0.5 mm	Pan head	not stated	Official Milwaukee Service Parts List for M18/M12 Gangbox Rapid Charger specifies 'M3 x 8mm Pan Hd. T-10 Screw' (part 05-81-1195, qty 33) for top housing assembly; M18 Fuel Impact Drill service parts list specifies 'M3 x 16mm Pan...' screw (part 06-82-6351)	Confirmed

Fitment records and sources

M38mm and 16mmconfirmed

Official Milwaukee Service Parts List for M18/M12 Gangbox Rapid Charger specifies 'M3 x 8mm Pan Hd. T-10 Screw' (part 05-81-1195, qty 33) for top housing assembly; M18 Fuel Impact Drill service parts list specifies 'M3 x 16mm Pan...' screw (part 06-82-6351)

pitch 0.5 mm · tap 2.5 mm · clearance 3.4 mm · PH1 / Torx T10

Source

How to check the screw before you buy

Industrial parts lists usually give the full callout (thread, length, head, grade); match all four, not just the thread.
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: for pan head screws, measure from under the head to the tip (countersunk heads are the exception: they are measured overall).
The records span 8–16 mm, which means different positions take different lengths — match each hole to its own screw.
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

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.
Pond/aquarium equipment manuals aimed at consumers rarely specify exact thread pitch or length for internal fasteners, since these are considered non-user-serviceable; distributor-level assembly/service manuals (e.g., Maytronics internal documents) are a better source than end-user guides.

Pitch gauge · Screw size finder · Torque guide

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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The same screw also fits

Devices whose records share a thread with Milwaukee M18/M12 charger and cordless tool internals, closest length match first.

Nest Doorbell (battery) also M3 × 12 mm
Milwaukee heat gun (service parts list m248220) also M3 × 14 mm
Milwaukee cordless tool (service bulletin 54-26-2590) also M3 × 16 mm
DeWalt DCD790 cordless drill also M3 × 10 mm
Milwaukee M12 FUEL 3 in. random-orbital detail sander also M3 × 14 mm
Power tool trigger switch also M3 × 8–14 mm
COSEL power supply terminal block (used in industrial/pump/water-treatment control panels) also M3 × 8 mm
JCM WBA-series World Bill Acceptor internal hardware also M3 × 10 mm

Questions about Milwaukee M18/M12 charger and cordless tool internals screws

What size screw does Milwaukee M18/M12 charger and cordless tool internals use?: M3 × 8–16 mm for official Milwaukee Service Parts List for M18/M12 Gangbox Rapid Charger specifies 'M3 x 8mm Pan Hd. T-10 Screw' (part 05-81-1195, qty 33) for top housing assembly; M18 Fuel Impact Drill service parts list specifies 'M3 x 16mm Pan...' screw (part 06-82-6351).
How long are the screws in Milwaukee M18/M12 charger and cordless tool internals?: The records range from 8 to 16 mm depending on the position, so match each screw to its own hole.
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 Milwaukee M18/M12 charger and cordless tool internals?: 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 Milwaukee M18/M12 charger and cordless tool internals?: TechSpareWarehouse (our own store) lists M3 x 8mm, M3 x 10mm and M3 x 12mm, which match lengths in the records above.

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