304 Stainless Steel Conical Countersunk Washer M3 M4 M5 M6

304 Stainless Steel Conical Countersunk Decorative Washers — M3, M4, M5, M6

Upgrade your fastening projects with these precision-made 304 Stainless Steel Conical Countersunk Washers. Available in M3, M4, M5, and M6 sizes, these concave-convex hollow cone washers provide a clean, flush finish on furniture, machinery, electronics, and DIY builds. Crafted from durable 304 stainless steel, they resist rust and corrosion, making them suitable for both indoor and outdoor applications.

Product Specifications

• Material: 304 Stainless Steel
• Standard: GB
• Available Sizes: M3, M4, M5, M6
• Example (M3): Inner Diameter 3mm × Outer Diameter 11mm × Thickness 2.5mm
• Thickness: 1mm (standard)
• Quantity Options: 10 / 20 / 50 / 100 pcs per lot
• Packing: Plastic bag / Carton
• Made in Mainland China

Key Features

• ✅ Premium 304 Stainless Steel — excellent corrosion and rust resistance for long-lasting performance
• ✅ Conical Concave-Convex Design — creates a flush, countersunk finish for a professional, clean look
• ✅ Multiple Size Options — M3, M4, M5, M6 to suit a wide range of screw sizes and applications
• ✅ Bulk Quantity Packs — choose from 10 to 100 pcs so you always have enough on hand
• ✅ Versatile Use — ideal for woodworking, cabinetry, electronics assembly, automotive, and general DIY projects
• ✅ Decorative & Functional — the hollow cone shape adds an attractive decorative element while providing a secure seat for fasteners

What's Included

Your chosen quantity (10 / 20 / 50 / 100 pcs) of 304 Stainless Steel Conical Countersunk Washers in your selected size (M3, M4, M5, or M6), securely packed in a plastic bag or carton.

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Frequently Asked Questions

Q: What sizes are available for these conical countersunk stainless steel washers?

A: These washers are available in M3, M4, M5, and M6 sizes. As an example, the M3 size measures 3mm inner diameter × 11mm outer diameter × 2.5mm thickness. Please select your preferred size and quantity when ordering.

Q: What material are these conical decorative washers made from?

A: These washers are made from high-quality 304 Stainless Steel, which offers excellent resistance to rust, corrosion, and general wear — making them a durable choice for both indoor and outdoor fastening projects.

Q: Can I use these washers for decorative as well as functional purposes?

A: Absolutely! The concave-convex hollow cone design of these washers provides both a secure countersunk seat for your fasteners and an attractive decorative finish, making them popular for furniture, cabinetry, DIY electronics, and automotive builds.

Q: How many washers come in a pack?

A: You can choose from packs of 10, 20, 50, or 100 pieces per lot, so you can buy exactly the quantity you need for your project — whether a small repair or a large-scale build.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.