Which driver bit do I need for these screws?

These screws use a Phillips (PH) cross-head drive. The correct bit size generally depends on the screw diameter: PH0 for M3, PH1 for M3–M4, PH2 for M5–M8, and PH3 for M10–M12. Using the correct bit size reduces cam-out and protects the head recess.

Can I use these screws with standard metric nuts and washers?

Yes. These screws follow standard metric coarse thread dimensions (DIN 965 / ISO 7046), so they are compatible with standard metric hex nuts (DIN 934), nylon lock nuts (DIN 985), and flat washers (DIN 125) of the corresponding size.

How do I convert the screw length from mm to inches?

Divide the length in mm by 25.4 to get inches. Common conversions: 4mm ≈ 5/32”, 6mm ≈ 1/4”, 10mm ≈ 3/8”, 16mm ≈ 5/8”, 25mm ≈ 1”, 40mm ≈ 1-9/16”, 50mm ≈ 2”, 60mm ≈ 2-3/8”.

M3–M12 Zinc Plated Phillips Countersunk Machine Screws DIN 965 | Flat Head Bolts

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M3–M12 Zinc Plated Phillips Countersunk Machine Screws DIN 965 | Flat Head Bolts

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Sizes: M3 x 4mm

Pitch: 0.5mm

Pack of Quantity (Pcs): 200

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$9.91 USD

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In stock (500 units), ready to be shipped

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Phillips Countersunk Machine Screws — Flush Fit for Clean, Professional Assemblies

When a protruding screw head gets in the way — snagging cables, preventing panel alignment, or simply looking unfinished — you need a flat head fastener that disappears into the surface. These zinc plated Phillips countersunk machine screws are built for engineers, makers, and DIYers who need a reliable metric fastener that sits perfectly flush every time.

Each screw follows the DIN 965 (ISO 7046) standard with a 90° countersunk flat head and Phillips cross-drive recess. Available in diameters M3 through M12 with metric coarse thread pitches (0.5mm–1.75mm), and lengths ranging from 4mm (≈5/32") to 60mm (≈2-3/8"). Packs are offered in quantities of 10, 20, 50, 100, or 200 pieces to suit both small repairs and bulk assembly needs.

Typical applications include electronics enclosure assembly, computer case builds, furniture flat-pack hardware, automotive interior panels, and general-purpose machine assembly where a flush surface finish is required. The zinc plating provides a clean silver appearance and moderate corrosion resistance for indoor and light-duty use.

ℹ️ Compatibility: DIN 965 / ISO 7046 metric coarse thread. Compatible with standard metric tapped holes, hex nuts (DIN 934), nylon lock nuts (DIN 985), and flat washers (DIN 125). Thread pitch is fixed per diameter — see variant options for the correct pitch for each size.

✅ Key Features of These Phillips Countersunk Machine Screws

🔩DIN 965 Flat Head Profile — 90° countersunk head sits flush with or below the material surface, eliminating snag points in panel assemblies and electronics enclosures.
⚙️Metric Coarse Thread Accuracy — Thread pitch matches ISO 68-1 standards (M3×0.5 through M12×1.75), ensuring consistent engagement with tapped holes and standard metric nuts without cross-threading risk.
🛡️Zinc Plated Finish — Electroplated zinc coating provides moderate corrosion resistance and a uniform silver appearance suitable for indoor machine assembly and light-duty applications.
📐Wide Size Range in One Listing — M3 through M12 diameters and lengths from 4mm to 60mm (≈5/32" to ≈2-3/8") cover the most common metric countersunk screw sizes for DIY and light industrial use.
🔧Phillips Cross-Drive Recess — Compatible with PH0–PH3 driver bits and standard power drill drivers, making installation fast whether you're hand-tightening or using a cordless drill.
📦Flexible Pack Quantities — Choose from 10 to 200 pieces per pack. Ideal for prototyping in small quantities or stocking your workshop with bulk metric flat head machine screws at a lower per-unit cost.

📐 Technical Specifications — Phillips Countersunk Machine Screws DIN 965

Standard	DIN 965 / ISO 7046
Head Type	Countersunk flat head, 90° angle
Drive Type	Phillips (PH cross recess)
Material	Carbon steel with zinc electroplating
Finish	Zinc plated (silver appearance)
Diameter Range	M3 — M12
Thread Pitch	M3: 0.5mm \| M4: 0.7mm \| M5: 0.8mm \| M6: 1mm \| M8: 1.25mm \| M10: 1.5mm \| M12: 1.75mm
Length Range	4mm (≈5/32") — 60mm (≈2-3/8")
Pack Quantities	10 / 20 / 50 / 100 / 200 pcs (varies by size)
Thread Type	Metric coarse (ISO 68-1)
Property Class	See variant options or contact us to confirm
Compatible Nuts	DIN 934 hex nuts, DIN 985 nylon lock nuts (same diameter)
Compatible Washers	DIN 125 flat washers (same diameter)
Recommended Driver Bit	PH0 (M3 small), PH1 (M3–M4), PH2 (M5–M8), PH3 (M10–M12)
Application	Electronics, furniture, automotive panels, general machine assembly

⚠️ Note: Not all length options are available for every diameter. Pack quantity per variant may vary. Check the size and pack quantity selectors above to confirm availability for your specific combination.

❓ Frequently Asked Questions

How do I choose the right length for a countersunk machine screw?

For countersunk (flat head) screws, measure the full grip length — from the top of the material surface to the bottom of the threaded hole. Because the head sits flush, the nominal length includes the head. As a general rule, choose a length equal to the material thickness plus at least 1.5× the screw diameter for thread engagement. For example, joining 5mm (≈3/16") sheet metal with an M4 screw typically calls for an M4 x 10mm or M4 x 12mm.

What is the tensile strength of these zinc plated machine screws?

Zinc plated steel machine screws are generally rated at property class 4.8 or 8.8 depending on the manufacturing batch. Class 4.8 typically offers a tensile strength of around 420 MPa, suitable for general-purpose fastening in electronics, furniture, and light machinery. If your application requires higher load ratings, contact us to confirm the specific grade.

Are these screws suitable for outdoor or humid environments?

Zinc plating provides moderate corrosion resistance suitable for indoor use and light outdoor exposure. For prolonged outdoor, marine, or high-humidity applications, stainless steel fasteners are generally recommended. If you need occasional outdoor use in dry climates, zinc plated screws typically perform well when protected from standing water.

What thread standard do these screws follow, and are they compatible with standard metric hardware?

These screws conform to DIN 965 (ISO 7046), which specifies metric coarse thread pitches: M3 at 0.5mm, M4 at 0.7mm, M5 at 0.8mm, M6 at 1mm, M8 at 1.25mm, M10 at 1.5mm, and M12 at 1.75mm. They are compatible with standard metric tapped holes and nuts following ISO 68-1, including DIN 934 hex nuts and DIN 985 nylon lock nuts.

Which Phillips driver bit size do I need?

The correct bit size generally depends on the screw diameter: PH0 for small M3 screws, PH1 for M3–M4, PH2 for M5–M8, and PH3 for M10–M12. Using the correct bit size reduces cam-out and protects the head recess during installation.

How do I convert screw lengths from mm to inches?

Divide the length in mm by 25.4 to get inches. Common conversions for this product range: 4mm ≈ 5/32", 6mm ≈ 1/4", 10mm ≈ 3/8", 16mm ≈ 5/8", 25mm ≈ 1", 40mm ≈ 1-9/16", 50mm ≈ 2", 60mm ≈ 2-3/8".

What pack sizes are available and which should I choose?

Packs are available in 10, 20, 50, 100, and 200 pieces depending on the size selected. For prototyping or small repairs, a pack of 10–20 is typically sufficient. For production runs, assembly lines, or workshop stock, packs of 50–200 offer better per-unit value. Note that available pack quantities vary by screw size — check the selector above.

Can I use these with a countersink drill bit for a truly flush finish?

Yes. These screws have a 90° countersunk head angle per DIN 965. When pre-drilling, use a 90° countersink bit matched to the screw diameter. In most cases, the countersink diameter should match the screw head diameter — typically around 5.5mm for M3, 8mm for M4, 9.5mm for M5, 11mm for M6, 14mm for M8, and 18mm for M10. Always test on scrap material first to confirm flush seating.

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