M2 M2.3 M2.6 M3 Flat Head Phillips Self Tapping Screws – Black Zinc Carbon Steel $7.00 USD

M2 M2.3 M2.6 M3 Flat Head Phillips Self Tapping Screws – Black Zinc Carbon Steel

Name: M2 M2.3 M2.6 M3 Flat Head Phillips Self Tapping Screws – Black Zinc Carbon Steel
Brand: HomeDIYer
SKU: A5652-0
Price: 7.0 USD
Availability: InStock

$7.00 USD

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🔩 Flat Head Phillips Self-Tapping Screws – Black Zinc Carbon Steel

When you need a screw that disappears into the surface, these flat-head Phillips self-tapping screws deliver a flush, snag‑free finish. The 90° countersink sits perfectly in standard holes, so nothing protrudes to catch on clothing, wiring, or moving parts – ideal for electronics enclosures, appliance panels, metal brackets, and wood joinery. Made from hardened carbon steel with a sleek black zinc plating, they offer reliable corrosion resistance indoors and in mild outdoor conditions, while the dark finish blends into shadowed areas for a cleaner look. The sharp self‑tapping thread slices into sheet metal, plastic, wood, and composites without a separate tapping operation, making assembly faster and simpler. BRT Fasteners supplies four practical metric diameters – M2, M2.3, M2.6, and M3 – giving you the right size for precision tasks like RC models, computer cases, cabinetry hardware, and light‑duty automotive repairs.

⚙️ Key Features – Flat Head Self-Tapping Screws Black Zinc

Flat 90° countersunk head sits flush with or below the surface – no protruding edges to snag or interfere
Black zinc plating over carbon steel provides moderate corrosion resistance and a low‑profile, professional appearance
Self‑tapping thread cuts cleanly into sheet metal, wood, plastic, and fiberglass without a pre‑tapped hole
Phillips drive recess offers positive bit engagement and helps prevent cam‑out during installation
Available in M2, M2.3, M2.6, and M3 diameters – the most requested sizes for small‑scale assembly and repair
Precision‑formed, burr‑free threads ensure consistent holding power and repeated reuse
Ideal for electronics chassis, panel‑mount hardware, RC hobbies, model building, and light‑duty metalworking

📋 Technical Specifications – Flat Head Self-Tapping Screws

Thread Spec.	Thread Diameter (d)	Head Diameter (dk)	Flat Angle	Typical Lengths (mm)*	Drive	Material & Finish
M2	2.0 mm	3.5 mm	90°	6, 8, 10, 12, 16	Phillips	Carbon Steel, Black Zinc Plated
M2.3	2.3 mm	3.7 mm	90°	6, 8, 10, 12, 16, 20	Phillips	Carbon Steel, Black Zinc Plated
M2.6	2.6 mm	4.2 mm	90°	8, 10, 12, 16, 20, 25	Phillips	Carbon Steel, Black Zinc Plated
M3	3.0 mm	5.1 mm	90°	8, 10, 12, 16, 20, 25, 30	Phillips	Carbon Steel, Black Zinc Plated

* Lengths include the head (overall length). Head dimensions and angles conform to GB/T846 equivalent standards. Select your preferred diameter and length from the listing options.

❓ Frequently Asked Questions – Flat Head Self-Tapping Screws

🔸 Do I need to countersink the hole for these flat-head screws?

For a truly flush fit, yes – a countersunk hole matching the 90° head angle is ideal. In thin sheet metal or soft plastic, the flat head may pull itself flush as you drive it without a separate operation. But for harder materials, a shallow countersink ensures the head sits perfectly flat.

🔸 How does black zinc compare to regular zinc plating?

Black zinc provides similar corrosion protection to standard zinc but with a dark, non‑reflective appearance. It’s great for applications where you want the hardware to blend into dark surfaces or reduce visibility. The coating is durable but eventually wears under heavy abrasion – for constant outdoor exposure, stainless steel may be a better choice.

🔸 Do I need a pilot hole for these self-tapping screws?

In thin sheet metal (up to about 1 mm) and soft plastics, you can often drive them directly without a pilot hole. For thicker steel, hard plastics, or dense wood, a pilot hole about 80% of the thread diameter helps reduce driving torque and ensures clean thread engagement.

🔸 Which Phillips bit should I use for these small screws?

M2, M2.3, and M2.6 typically require a #0 Phillips bit, while M3 uses a #1 Phillips bit. A properly fitting, unworn bit will minimize cam‑out and preserve the drive recess.