Milwaukee magnetic drill press (54-46-0421R) screw size
M4 · 18 mm long
Milwaukee magnetic drill press (54-46-0421R) takes M4 metric screws, 18 mm long.
The record covers housing and gearcase fastening, "M4 x 18mm Pan Hd." screws.
Head and drive, as the source states them: pan head.
This entry is marked confirmed and comes from documents.milwaukeetool.com.
For reference, M4 is 4 mm across the threads at 0.7 mm pitch. The imperial size people confuse it with: #8-32 (4.17 mm) — the standard US PC/rack screw, close but not the same.
Milwaukee magnetic drill press (54-46-0421R) 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 |
|---|---|---|---|---|---|---|
| M4 | 18 mm | 0.7 mm | Pan head | not stated | Housing and gearcase fastening, "M4 x 18mm Pan Hd." screws | Confirmed |
Fitment records and sources
Housing and gearcase fastening, "M4 x 18mm Pan Hd." screws
pitch 0.7 mm · tap 3.3 mm · clearance 4.5 mm · PH2 / Torx T20
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 M4 screw measures about 4 mm with calipers (usually a hair under). If yours measures noticeably more or less, it is a different thread.
- Pitch: 0.7 mm from one thread crest to the next (14.29 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 18 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 M4 heads take PH2 for Phillips and T20 for Torx, and a 3 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 M4 is about 2.0-3.0 N·m into metal threads and 0.8-1.4 N·m into plastic bosses; snug it up and stop.
Common mix-ups with M4
- M4 and 6-32 UNC share a nominal diameter with different pitch — a classic cross-thread in US-market kits.
More in Industrial & Machinery
ABB ACS580 motor terminal box / cable glandsABB ACS580 terminal hardware (frames R3-R5)ABB random-wound motor terminal boxes (ACS580 drive systems)Allen-Bradley ControlLogix 1756-A chassisAngle grinder gear housingBianchi / Nuova Simonelli / Rheavendors / Saeco vending machineCircular saw blade guard pivotContender Planetary Mixer MXP004/MXP005 (commercial bakery mixer) electrical diagram terminal screwsCordless drill housing shellsCOSEL power supply terminal block (used in industrial/pump/water-treatment control panels)Datalogic DS2400 fixed-mount barcode readerDeWalt D51430 / D51431 pneumatic nailer
Browse all 113 in Industrial & Machinery →The same screw also fits
Devices whose records share a thread with Milwaukee magnetic drill press (54-46-0421R), closest length match first.
- Pinball cabinet hardware (EU restorations) also M4 × 18 mm
- Power tool battery pack shell also M4 × 18 mm
- Ryobi / Homelite trimmer housing (part 661189003) also M4 × 18 mm
- Circular saw blade guard pivot also M4 × 18 mm
- Carbide3D Shapeoko 5 Pro CNC router also M4 × 18 mm
- Christie HS / Jazz Series UST lens bracket also M4 × 18 mm
- LG 43LJ5000 also M4 × 18 mm
- Samsung range / wall oven also M4 × 18 mm
Questions about Milwaukee magnetic drill press (54-46-0421R) screws
- What size screw does Milwaukee magnetic drill press (54-46-0421R) use?
- M4 × 18 mm for housing and gearcase fastening, "M4 x 18mm Pan Hd." screws.
- How long are the screws in Milwaukee magnetic drill press (54-46-0421R)?
- The record gives 18 mm. Measure the original from under the head (overall for a countersunk head) to confirm before ordering.
- What is the thread pitch of an M4 screw?
- 0.7 mm (coarse), which is the standard pitch for M4 machine screws; a 0.5 mm fine pitch exists but is uncommon. The tap drill is 3.3 mm and the normal clearance hole is 4.5 mm.
- What screwdriver do I need for Milwaukee magnetic drill press (54-46-0421R)?
- The sources do not name the drive. For M4, Phillips heads normally take PH2 and Torx heads T20; socket heads take a 3 mm hex key.
- Can I use an imperial screw instead of M4?
- No. Imperial look-alike: #8-32 (4.17 mm) — the standard US PC/rack screw, close but not the same. Use a true M4 screw so it does not cross-thread or strip the hole.