Neodymium Ring Magnets (20mm x 15mm) – Strong Industrial Magnets
$7.99 on Amazon.com (as of October 17, 2026, 8:03 AM EST) View details ↗
Upgrade your projects with these **high-performance neodymium ring magnets**, engineered for durability and superior holding strength. With a **20mm outer diameter, 15mm thickness, and 6mm countersunk hole**, these rare-earth magnets are ideal for **DIY, industrial, and craft applications**—from speaker assemblies and motor components to magnetic separators and sensor systems. The **flush-mountable design** ensures secure, permanent installation with screws, while axial magnetization delivers **even, powerful magnetic force** across the flat surfaces.
Available in **1–20 piece packs**, these magnets provide flexibility for small repairs or large-scale projects. Their **industrial-grade construction** makes them reliable for demanding environments, though they require careful handling due to their potent magnetic field. Whether you're building a custom fixture, assembling a motor, or adding functionality to a craft, these versatile magnets offer the **strength and precision** needed for professional results.
| Magnetic Strength | High-grade rare-earth neodymium (exceptional holding power) |
|---|---|
| Outer Diameter | 20mm (0.79″) |
| Thickness | 15mm (0.59″) |
| Center Hole Diameter | 6mm (0.24″) |
| Magnetization Direction | Axial (poles on flat surfaces) |
| Pack Sizes | 1, 5, 10, or 20 pieces |





