⚫ Product Overview: Black Zinc Plated Phillips Pan Head Screws with Spring & Flat Washers (M2–M8)
Tired of hunting for separate washers every time you grab a screw? This complete set solves that – each black zinc plated Phillips pan head machine screw comes with both a spring washer and a flat washer, so you’re ready to bolt things down securely right away. The spring washer keeps tension and fights loosening from vibration, while the flat washer protects your surface and spreads the load. Made from carbon steel with a black zinc finish, these M2 to M8 metric screws resist everyday corrosion and look clean on dark panels, furniture, and machinery. Perfect for appliances, automotive trim, electronics enclosures, and DIY projects – grab the size you need and get the job done without extra trips to the hardware bin.
✨ Why This Black Zinc Screw & Washer Set Is a Workshop Essential
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Complete set – screw + spring washer + flat washer – No separate purchases. The spring washer prevents back-out from vibration (great for moving parts). The flat washer protects soft materials like plastic or wood.
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Black zinc plated carbon steel – Dark, corrosion‑resistant finish that blends with black equipment and resists rust. Much better than raw steel.
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Phillips round (pan) head design – Low‑profile rounded head with a flat bearing surface. Distributes clamping force evenly and gives a professional appearance.
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Wide metric size range: M2, M2.5, M3, M4, M5, M6, M8 – From tiny electronics screws up to medium‑duty bolts for furniture and machinery. One product page covers almost all your small fastener needs.
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Fully threaded, coarse metric pitch – Standard threads: M2x0.4, M2.5x0.45, M3x0.5, M4x0.7, M5x0.8, M6x1.0, M8x1.25. Threads run the entire length.
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Length measured under the head – Example: M6 x 30mm means thread diameter 6mm, thread length 30mm (excluding head). No confusion.
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Wide application range – Home appliances, furniture, electronics, machinery, automotive trim, and general DIY.
📏 Technical Specifications – Black Zinc Pan Head Screws with Washers (M2–M8)
| Specification |
Details |
| Product Type |
Phillips Pan Head Machine Screws + Spring Washer + Flat Washer (pre‑packaged as a set) |
| Material |
Carbon steel |
| Surface Finish |
Black zinc plated (matte dark, corrosion‑resistant) |
| Drive Style |
Phillips cross‑head |
| Head Style |
Pan head / Round head (low profile, flat bearing surface) |
| Washers Included |
One spring washer (anti‑vibration) + one flat washer (load distribution) per screw |
| Thread Sizes (Screw Size) |
M2, M2.5, M3, M4, M5, M6, M8 |
| Thread Pitch (coarse) |
M2x0.4, M2.5x0.45, M3x0.5, M4x0.7, M5x0.8, M6x1.0, M8x1.25 |
| Length Measurement |
Under head (e.g., M6 x 30mm = 6mm diameter, 30mm threaded length, head not included) |
| System of Measurement |
Metric |
| Packing |
Plastic bag / Paper box |
❓ FAQs – Black Zinc Pan Head Screws with Washers
🔸 Why do I need both a spring washer and a flat washer?
The flat washer goes against the surface (wood, plastic, metal) and distributes clamping force, preventing damage and pull-through. The spring washer sits between the flat washer and the screw head – its split design creates tension that resists loosening from vibration. Together, they give you a secure, long-lasting fastening for appliances, furniture, and moving parts.
🔸 Will the black zinc finish rust or wear off?
Black zinc provides good corrosion resistance for indoor use and light outdoor exposure. It holds up well for furniture, electronics, and machinery. With repeated driving, the recess may show some wear, but the overall coating protects against rust. For constant wet conditions, stainless steel would be better.
🔸 How do I choose the right length for my project?
Length is measured from under the head (flat bearing surface) to the tip – the pan head is not included. Measure the thickness of the materials you’re fastening, then add enough length for full thread engagement (at least 2‑3 threads beyond the nut or bottom of a blind hole). Example: if your panels total 10mm thick, choose a 12–15mm screw for proper grip.
🔸 What Phillips screwdriver size works for M2 through M8?
M2–M2.5: use PH0 or PH00. M3–M4: use PH1. M5–M6: use PH2. M8: use PH2 or PH3 (PH2 works for most). Using the correct size prevents stripping.
🔸 Are the washers removable? Can I use the screw without them?
Yes – the spring and flat washers are separate pieces, not pre‑attached. You can choose to use all, some, or none of them. However, for best results against vibration and surface damage, we recommend using both as intended.
🔸 Do you offer bulk discounts or mixed sizes?
Absolutely. Larger quantities are available upon request. Contact us via the "Ask a question" tab for volume pricing. We aim for 100% customer satisfaction.
