Black Phillips Pan Head Machine Screws M2 M2.5 M3 M4 — Electronics Micro Screws 3mm to 20mm, Bulk Packs of 50–500 $1.75 USD

Black Phillips Pan Head Machine Screws M2 M2.5 M3 M4 — Electronics Micro Screws 3mm to 20mm, Bulk Packs of 50–500

Name: Black Phillips Pan Head Machine Screws M2 M2.5 M3 M4 — Electronics Micro Screws 3mm to 20mm, Bulk Packs of 50–500
Brand: HomeDIYer
SKU: ALLLJGB00508x50
Price: 1.75 USD
Availability: InStock

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Black Phillips Pan Head Machine Screws M2–M4 — Bulk Electronics Micro Screws for Repair Shops, Production Lines & Workshop Stock

Running out of the right M2 or M3 screw mid-repair is a workflow killer. These black Phillips pan head machine screws in M2, M2.5, M3, and M4 are available in bulk packs of 50 to 500 pieces — designed for electronics repair technicians, production lines, and workshops that need a reliable stock of the most common micro fastener sizes without paying retail prices per screw.

The pan head profile provides a wide, flat bearing surface that distributes clamping force evenly across panels, PCB surfaces, and plastic housings. The black oxide finish reduces light reflection and suits dark enclosures and electronics builds. Available in 32 size combinations from M2×3mm (0.12”) to M4×20mm (0.79”). The Phillips drive is compatible with standard PH0–PH1 precision screwdrivers.

Typical applications include laptop hinge and keyboard assembly (M2–M2.5), electronics enclosure and panel mounting (M3–M4), PCB bracket fastening (M2–M3), small appliance and device repair (M3–M4), and general workshop stock for the most common metric micro fastener sizes.

🔗 Compatibility: ISO metric thread — M2, M2.5, M3, M4. Phillips drive: PH0 (M2–M2.5) / PH1 (M3–M4). Requires a pre-tapped hole or a matching metric nut. Not self-tapping.

⚠️ Note: Screw length is measured excluding the head (shaft length only). Size format: M[diameter]×[length]mm (e.g., M3×8 = 3mm diameter, 8mm shaft). Not all length options are available for every diameter — check the size selector before ordering.

✅ Key Features of These Black Phillips Pan Head Machine Screws M2–M4

📦Bulk Packs of 50–500 — Significantly better per-unit value than small retail packs; ideal for electronics repair shops, production lines, and workshops that need a reliable stock of common micro fastener sizes.
🖤Black Oxide Finish — Corrosion-resistant black coating reduces light reflection and suits dark enclosures, electronics builds, and assemblies where a low-visibility fastener is preferred.
🎯Pan Head Profile — Wide, flat bearing surface distributes clamping force evenly; low-profile head suits PCB surfaces, thin panels, plastic housings, and electronics enclosures.
🔧Phillips PH0–PH1 Drive — Compatible with standard precision screwdrivers; suitable for both hand tightening and controlled power tool use across the M2–M4 range.
📐32 Size Combinations — M2 through M4 in lengths from 3mm (0.12”) to 20mm (0.79”); covers the most common micro fastener sizes for electronics repair and production in a single listing.
✅ISO Metric Thread Standard — Dimensionally consistent with M-series tapped holes, nuts, and threaded inserts; no compatibility guesswork for standard metric applications.

📐 Technical Specifications — Black Phillips Pan Head Machine Screws M2–M4

Material	Steel with black oxide or black zinc finish
Finish	Black (corrosion-resistant coating)
Thread Standard	ISO Metric
Thread Diameters	M2, M2.5, M3, M4
Head Style	Pan Head (Round Head)
Drive Type	Phillips — PH0 (M2–M2.5) / PH1 (M3–M4)
Length Range (M2)	3mm (0.12”) to 12mm (0.47”)
Length Range (M2.5)	3mm (0.12”) to 12mm (0.47”)
Length Range (M3)	3mm (0.12”) to 16mm (0.63”)
Length Range (M4)	4mm (0.16”) to 20mm (0.79”)
Bulk Pack Sizes	50 / 100 / 200 / 500 pcs
Screw Type	Machine screw (requires tapped hole or nut)
Length Measurement	Excluding head (shaft length only)
Common Applications	Laptop repair, keyboard assembly, electronics enclosures, PCB mounting, small appliance repair, production line stock

❓ Frequently Asked Questions

How do I choose the right screw length?

Measure the depth of the tapped hole or the thickness of the material being clamped. The screw length (excluding head) should engage at least 1.5× the thread diameter. Available lengths: 3mm (0.12”) to 20mm (0.79”) depending on the diameter. When in doubt, size up.

What is the black finish on these screws?

The screws feature a black oxide or black zinc coating that provides corrosion resistance, reduces light reflection, and gives a clean, low-profile appearance. This finish is commonly used in electronics builds, PC cases, and dark-panel enclosures where a silver screw head would stand out.

What screwdriver do I need?

A Phillips precision screwdriver: PH0 for M2–M2.5, PH1 for M3–M4. Always use a well-fitting driver to avoid stripping, especially on smaller sizes. A quality precision screwdriver set is strongly recommended for M2 and M2.5 screws.

Are these suitable for electronics and laptop repair?

Yes. M2–M2.5 are standard sizes for laptop hinges and keyboard assemblies. M3–M4 suit electronics enclosures and panel mounting. These bulk packs are particularly well-suited for repair technicians who need a reliable stock of common sizes. Always verify your device’s exact thread spec before ordering.

Why buy in bulk packs of 50–500?

Bulk packs offer significantly better per-unit value than small retail packs. For electronics repair shops, production lines, and workshops that regularly use M2–M4 micro screws, stocking in quantities of 100–500 reduces per-repair cost and eliminates the risk of running out mid-job.

Do these require a tapped hole or nut?

Yes — these are machine screws, not self-tapping. They require a pre-tapped M-series hole or a matching metric nut in the same thread size. They will not cut their own thread into plastic or metal.

What bulk pack sizes are available?

Available in bulk packs of 50, 100, 200, and 500 pieces. The 500-piece pack offers the best per-unit value for high-volume repair shops and production use. Select your preferred quantity using the QTY option above.

🛒 Select your size and bulk pack quantity above, then add to cart — ships from our US warehouse.