M4 M5 M6 Phillips Countersunk Screws – Zinc Plated Carbon Steel, 6–24mm Lengths (Bulk Pack)

Roll over image to zoom in Click on image to zoom

M4 M5 M6 Phillips Countersunk Screws – Zinc Plated Carbon Steel, 6–24mm Lengths (Bulk Pack)

Name: M4 M5 M6 Phillips Countersunk Screws – Zinc Plated Carbon Steel, 6–24mm Lengths (Bulk Pack)
Brand: HomeDIYer
Price: 16.46 USD
Availability: InStock

HomeDIYer

No reviews

By HomeDIYer®

Size: M4*5 D=7

Quantitys: 100Pcs

Surface Treatment: Black Zinc-Plated

Price:

$16.46 USD

Stock:

In stock (500 units), ready to be shipped

Quantity:

Share this product

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

DIY Expert Support

Get fitment advice & recommendations

Mon–Fri 8:30 AM – 8:00 PM

WhatsApp Email Us

24-Hour Fast Ship

Arrives in 3–14 Days

Worldwide Shipping

30-Day Returns

1 tree planted with every purchase

M4 M5 M6 Zinc Plated Phillips Countersunk Screws — Flush-Mount Carbon Steel Fasteners for Machinery, Electronics & Furniture

When you need a fastener that disappears into the surface, these zinc plated Phillips countersunk screws deliver a clean, flush finish every time. Made from carbon steel with a protective zinc coating, they resist rust and corrosion in indoor and light outdoor environments — making them a reliable choice for motor covers, control panels, cabinet hinges, and automotive trim brackets. The 90° flat head sinks flush into a pre-drilled countersink, eliminating snag points and leaving a smooth, professional surface.

Available in M4, M5, and M6 thread diameters with overall lengths from 6mm to 24mm (measured from top of head to tip). All screws are fully threaded. Surface treatment options include Black Zinc-Plated, Blue Zinc, White Zinc, Zinc-Plated, Nickel-plated, Stainless, Color Zinc, Trivalent Zinc, and more — select your preferred finish from the variant dropdown. Bulk packs of 100 to 500 pieces available for workshop restocking and production use.

Typical applications include securing laptop casings and PCB enclosures with M4 screws, fastening motor covers and machine guards with M5 or M6 screws, fitting hidden cabinet hinges and drawer slides in furniture, and mounting automotive ECU boxes and dashboard brackets where a flush surface is required.

🔩 Compatibility: ISO metric coarse thread — M4 (0.7mm pitch), M5 (0.8mm pitch), M6 (1.0mm pitch). Phillips driver sizes: M4 → PH1 | M5/M6 → PH2. Not compatible with UNC/UNF inch threads.

⚠️ Size Note: Length is measured overall — from the top of the flat head to the tip. An M4 × 10mm screw has a total length of 10mm including the head. A countersink hole is required for a flush finish. All screws are fully threaded.

✅ Key Features of These Zinc Plated Phillips Countersunk Screws

🔽90° Countersunk Flat Head: Sinks flush with or below the mating surface when installed in a properly countersunk hole. Eliminates snag points on panels, covers, and trim — ideal for hidden fastening and smooth, professional finishes.
🪣Zinc Plated Carbon Steel: Protective zinc coating resists rust and moisture for indoor and light outdoor use. Multiple surface treatment options available including Black Zinc, Blue Zinc, White Zinc, Nickel-plated, Stainless, and more — select from the dropdown.
💪High Mechanical Strength: Carbon steel construction provides good hardness and tensile strength for reliable clamping force in mechanical equipment, automotive, and furniture applications.
🔧Standard Phillips Cross Drive: Compatible with PH1 (M4) and PH2 (M5/M6) Phillips screwdrivers and power driver bits. No specialty tools required — easy to install and remove during repeated assembly cycles.
📐Three Metric Diameters, Multiple Lengths: Available in M4, M5, and M6 with overall lengths from 6mm (≈1/4") to 24mm (≈15/16"). Fully threaded for maximum grip in blind holes or when used with nuts.
📦Bulk Pack Options: Available in packs of 100 to 500 pieces. Buy 100 pcs for a single project or 500 pcs for workshop restocking — the per-unit cost decreases with larger quantities.

🎯 Who Is This For?

🖥️ Electronics & Enclosure Fabricators

Secure laptop casings, PCB enclosures, and control panel covers with M4 countersunk screws. The flush head profile eliminates protrusions on tight-clearance assemblies.

⚙️ Mechanical Equipment Builders

Fasten motor covers, machine guards, and control panels with M5 or M6 zinc plated screws. Carbon steel strength handles the vibration and load demands of industrial equipment.

🚗 Automotive Technicians

Mount ECU control boxes, dashboard brackets, and trim panels where a flush surface is required. Zinc plating resists the humidity and temperature cycles of automotive environments.

🪑 Furniture & Cabinet Makers

Fit hidden hinges, drawer slides, and cabinet hardware with M4 or M5 countersunk screws. The flush head keeps surfaces smooth and snag-free for a professional finish.

Product Type	Countersunk (Flat Head) Phillips Drive Machine Screw
Drive Type	Phillips Cross Drive (PH)
Head Angle	90°
Material	Carbon Steel
Surface Treatment	See variant options (Black Zinc-Plated, Blue Zinc, White Zinc, Zinc-Plated, Nickel-plated, Stainless, Color Zinc, Trivalent Zinc, and more)
Thread Standard	ISO Metric Coarse
Available Thread Diameters	M4, M5, M6
Thread Pitch	M4: 0.7mm \| M5: 0.8mm \| M6: 1.0mm
Available Overall Lengths	6mm – 24mm (measured from top of head to tip)
Thread Type	Fully Threaded
Phillips Driver Size	M4: PH1 \| M5 / M6: PH2
Pack Quantities	100 / 200 / 300 / 400 / 500 pieces

❓ Frequently Asked Questions

How is the length of a countersunk screw measured?

For countersunk screws, the length is measured overall — from the top of the flat head to the tip. An M4 × 10mm screw has a total length of 10mm including the head. This is the standard measurement method for countersunk fasteners and matches our listings.

Do I need to countersink the hole for these screws to sit flush?

Yes. These are true 90° countersunk screws. To achieve a flush finish, drill a matching 90° countersink hole using a countersink bit of the appropriate size for your thread diameter. Without a countersink, the head will protrude above the surface.

Are these screws fully threaded?

Yes — all M4, M5, and M6 screws in this range are fully threaded from under the head to the tip, giving you maximum grip in blind holes or when using nuts. Note: the M4 × 12mm D=7.5 variant is a partial thread design — check the size option name for confirmation.

Will the zinc plating rust? Can I use these screws outdoors?

Zinc plating provides good corrosion resistance for indoor use and occasional light outdoor exposure such as covered patios or garages. For continuous outdoor or marine environments, we recommend selecting the Stainless surface treatment option. For most mechanical, furniture, and automotive applications, zinc plated screws are perfectly adequate.

What Phillips screwdriver size do I need for M4, M5, and M6?

M4 screws typically use a PH1 (Phillips #1) driver. M5 and M6 screws typically use a PH2 (Phillips #2) driver. Always use a driver that fits snugly in the recess — a loose-fitting driver increases the risk of cam-out, which can damage the head. Apply firm downward pressure while driving.

What surface treatment options are available?

Multiple surface treatments are available depending on the size selected: Black Zinc-Plated, Blue Zinc, Blue Zinc Blue, White Zinc, White Zinc Blue, Zinc-Plated, Nickel-plated, Color Zinc, Trivalent Zinc, Stainless, Stainless (Black Zinc-Plated), and Stainless (Black). Select your preferred finish from the Surface Treatment dropdown. Contact us if you need a specific finish not shown.

How do I decide between 100, 200, 300, 400, or 500 pieces?

For a single repair or small project, 100 pcs is generally sufficient. Workshop restocking or small production runs typically call for 200–300 pcs. For ongoing manufacturing or high-volume assembly, 400 or 500 pcs offers a lower per-unit cost and reduces reorder frequency.

🛒 Select your size, quantity, and surface treatment above, then add to cart.

M4 M5 M6 Phillips Countersunk Screws – Zinc Plated Carbon Steel, 6–24mm Lengths (Bulk Pack)

Payment & Security

DIY Expert Support

Description

M4 M5 M6 Zinc Plated Phillips Countersunk Screws — Flush-Mount Carbon Steel Fasteners for Machinery, Electronics & Furniture

✅ Key Features of These Zinc Plated Phillips Countersunk Screws

🎯 Who Is This For?

❓ Frequently Asked Questions

M4 M5 M6 Phillips Countersunk Screws – Zinc Plated Carbon Steel, 6–24mm Lengths (Bulk Pack)

You may also like

Recently viewed

Let customers speak for us