Speed Queen commercial washer (Alliance Laundry Systems OEM part) screw size
M4 · 8 mm long
The screws used on Speed Queen commercial washer (Alliance Laundry Systems OEM part) are M4, 8 mm long.
Where it is used: OEM replacement part explicitly named 'SCREW M4X8; DIN 84A 4.8 ZINC PLATED', part #SP309084000408.
This entry is marked confirmed and comes from parts.alliancelaundry.com.
M4 means a 4 mm nominal diameter with a 0.7 mm thread pitch. Imperial look-alike: #8-32 (4.17 mm) — the standard US PC/rack screw, close but not the same.
Speed Queen commercial washer (Alliance Laundry Systems OEM part) 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 | 8 mm | 0.7 mm | not stated | not stated | OEM replacement part explicitly named 'SCREW M4X8; DIN 84A 4.8 ZINC PLATED', part #SP309084000408 | Confirmed |
Fitment records and sources
OEM replacement part explicitly named 'SCREW M4X8; DIN 84A 4.8 ZINC PLATED', part #SP309084000408
pitch 0.7 mm · tap 3.3 mm · clearance 4.5 mm · PH2 / Torx T20
How to check the screw before you buy
- Appliance panels often use self-tapping screws into sheet metal or plastic, and machine screws into nuts or inserts — keep each type where it came from.
- 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: 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 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
- OEM laundry-parts storefronts (Alliance Laundry) are a very reliable source because they name the exact DIN standard and thread callout in the product title itself, unlike most service manuals which just show an exploded-view drawing.
- Festo sensor brackets are named after the sensor interface (DASP-M4-...), but the bracket's own fixing screws are often a different size (M5/M6/M8).
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Devices whose records share a thread with Speed Queen commercial washer (Alliance Laundry Systems OEM part), closest length match first.
- Dishwasher control console also M4 × 8 mm
- Johnson Controls PENN VFD68 Variable Frequency Drive (used on pumps, mixers, HVAC/water treatment motors) also M4 × 8 mm
- Microwave housing and control panel also M4 × 8 mm
- Ikan PT4100 20-inch teleprompter also M4 × 8 mm
- Avid CNC Laser Kit also M4 × 8 mm
- DIN 41612 backplane / rack card retention also M4 × 8 mm
- LG 42LM6700 also M4 × 8 mm
- Car badge / emblem studs also M4 × 8 mm
Questions about Speed Queen commercial washer (Alliance Laundry Systems OEM part) screws
- What size screw does Speed Queen commercial washer (Alliance Laundry Systems OEM part) use?
- M4 × 8 mm for OEM replacement part explicitly named 'SCREW M4X8; DIN 84A 4.8 ZINC PLATED', part #SP309084000408.
- How long are the screws in Speed Queen commercial washer (Alliance Laundry Systems OEM part)?
- 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 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 Speed Queen commercial washer (Alliance Laundry Systems OEM part)?
- 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.