⚫ Product Overview: M2–M5 Black Zinc Phillips Pan Head Screws (Carbon Steel)
Need small screws that look clean, resist rust, and won't stand out on dark equipment? These black zinc plated Phillips pan head machine screws are exactly what you're after. Made from high‑strength carbon steel with a sleek black finish, they're perfect for furniture assembly, appliance repair, light industrial machinery, or any project where you want a stealthy, professional look. Available in M2, M2.5, M3, M4, and M5 metric diameters with lengths from 3mm to 20mm (measured under the head), they cover the most common small fastening needs. The rounded pan head sits neatly on surfaces, and the Phillips drive makes installation quick and easy with standard tools.
✨ Why Black Zinc Phillips Pan Head Screws Are a Shop Drawer Essential
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Black zinc plating on carbon steel – Provides a uniform dark finish that resists corrosion and blends perfectly with black anodized parts, powder‑coated panels, or dark appliances. Much tougher than paint.
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Phillips pan head design – Low‑profile rounded head with a flat bearing surface. Distributes clamping force evenly and gives a clean, finished appearance.
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Metric sizes M2, M2.5, M3, M4, M5 – The most commonly used small diameters for electronics, toys, furniture hardware, and light machinery.
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Lengths 3mm–20mm (under head) – From tiny 3mm screws for thin panels up to 20mm for through‑hole applications. Choose exactly what your repair or build needs.
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High strength carbon steel – Good toughness, excellent cold/hot processing characteristics, and reliable performance for everyday fastening.
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Fully threaded with standard coarse pitch – M2x0.4, M2.5x0.45, M3x0.5, M4x0.7, M5x0.8. Consistent thread geometry for reliable engagement with nuts or tapped holes.
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Wide application range – Perfect for household repairs, maintenance, light industrial assembly, furniture, and small DIY inventions.
📏 Technical Specifications – Black Zinc Pan Head Screws (M2–M5)
| Specification |
Details |
| Product Type |
Phillips Pan Head Machine Screws (Small Bolts) |
| Material |
Carbon Steel |
| Surface Treatment |
Black Zinc plating (corrosion‑resistant, dark matte finish) |
| Drive Style |
Phillips cross‑head |
| Head Style |
Pan Head / Round Head (low profile, flat bearing surface) |
| System of Measurement |
Metric |
| Screw Sizes (Diameter) |
M2, M2.5, M3, M4, M5 |
| Thread Pitch (coarse) |
M2x0.4, M2.5x0.45, M3x0.5, M4x0.7, M5x0.8 |
| Thread Type |
Fully threaded (full length from under head to tip) |
| Length Range |
3mm to 20mm (measured from underside of head – excludes head height) |
| Shape |
Round |
| End Type |
Open / flat end |
❓ FAQs – Black Zinc Pan Head Phillips Screws
🔸 Will the black zinc finish wear off over time?
Black zinc provides good durability for normal use. With repeated driving, the recess and thread tips may show some silver wear, but the overall finish holds up well for indoor applications. For high‑wear or outdoor environments, the plating still offers corrosion protection even if the black color fades slightly.
🔸 Are these screws fully threaded? How is length measured?
Yes – they are fully threaded from just under the head to the tip. Length is measured from under the head (the flat bearing surface) to the tip, not including the pan head. For example, an M4 x 10mm screw has a 10mm threaded shank plus the head height.
🔸 What Phillips screwdriver size works for M2 through M5?
M2 and M2.5: use PH0 or PH00 (PH0 is best). M3: use PH0 or PH1. M4: use PH1. M5: use PH1 or PH2 (PH1 works well). Using the correct size prevents stripping – invest in a precision screwdriver set for the small ones.
🔸 Can I use these screws outdoors?
Black zinc offers good corrosion resistance for outdoor use in mild climates (sheltered areas, occasional moisture). For constant rain, salt spray, or high humidity, stainless steel would be better. These are ideal for garage projects, furniture, and indoor/covered outdoor applications.
🔸 Do these screws come with nuts or washers?
They are sold as screws only. However, standard metric nuts and washers in M2–M5 sizes are widely available. The pan head works well with or without a flat washer – add one if you're fastening into soft material like plastic or wood.
🔸 Are these screws magnetic?
Yes – carbon steel is magnetic. For most household and light industrial use, that's not an issue. If you need non‑magnetic fasteners for sensitive electronics, consider brass or nylon instead.
