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.

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.

Samsung WA50M7450AW top-load washer service manual - control board/wire harness connector screws screw size

M3 · 8 mm long

If you are replacing a screw on Samsung WA50M7450AW top-load washer service manual - control board/wire harness connector screws, the thread is M3, 8 mm long.

It is listed for samsung washer service manual explicitly lists M3 screws for control board and sensor bracket fasteners in its exploded parts diagram torque table.

This entry is marked likely and comes from scribd.com.

M3 means a 3 mm nominal diameter with a 0.5 mm thread pitch. Imperial look-alike: #5-40 (3.18 mm) or #4-40 — neither interchanges with M3.

Samsung WA50M7450AW top-load washer service manual - control board/wire harness connector screws 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	Samsung washer service manual explicitly lists M3 screws for control board and sensor bracket fasteners in its exploded parts diagram torque tablewasher / flange face	Likely

Fitment records and sources

M3M3x8likely

Samsung washer service manual explicitly lists M3 screws for control board and sensor bracket fasteners in its exploded parts diagram torque table

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

Source

How to check the screw before you buy

Board standoffs and enclosure bosses set the usable length: the screw should clamp the board without bottoming in the standoff.
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

Many gas-detector and sensor manuals only give a torque spec (e.g. '0.5 N·m max') without repeating the thread size at every mention — the explicit M3 callout is usually only in the accessories/spare-parts table, not the main installation steps.
Grub screws (set screws) on sensor retainers are frequently M3 even when the surrounding housing uses M4/M5 fasteners — don't assume one thread size for a whole enclosure.

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 Samsung WA50M7450AW top-load washer service manual - control board/wire harness connector screws, closest length match first.

Metcase Technomet-Control instrument enclosure also M3 × 8 mm
Eurorack modular synthesizer cases also M3 × 8 mm
Canford D-series BNC panel connector (broadcast/RF) also M3 × 8 mm
Eurorack module panel mounting also M3 × 8 mm
Omron E3T ultracompact photoelectric sensor (used for conveyor/AGV object detection) also M3 × 8 mm
UniFi switch / access point wall bracket also M3 × 8 mm
Linksys E7350 router also M3 × 8 mm
Car interior trim and dash panel screws also M3 × 8 mm

Questions about Samsung WA50M7450AW top-load washer service manual - control board/wire harness connector screws screws

What size screw does Samsung WA50M7450AW top-load washer service manual - control board/wire harness connector screws use?: M3 × 8 mm for samsung washer service manual explicitly lists M3 screws for control board and sensor bracket fasteners in its exploded parts diagram torque table.
How long are the screws in Samsung WA50M7450AW top-load washer service manual - control board/wire harness connector screws?: 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 Samsung WA50M7450AW top-load washer service manual - control board/wire harness connector screws?: 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 Samsung WA50M7450AW top-load washer service manual - control board/wire harness connector screws?: TechSpareWarehouse (our own store) lists M3 x 8mm, which matches the length in the records above.

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