N35 neodymium disk magnet measuring 20 mm diameter × 3 mm thick, axially magnetized with Ni-Cu-Ni coating, 1,737.72 gauss listed surface field, and 6.99 lb listed pull force. SKU 9351.
SKU 9351 is an N35 neodymium disk magnet measuring 20 mm diameter × 3 mm thick. Axially magnetized through the 3 mm thickness, this nickel-plated NdFeB disk is a practical metric stock size for engineers, OEMs, and procurement teams working on sensing, holding, positioning, fixtures, prototypes, and production assemblies.
| Magnet Size | 20 mm diameter × 3 mm thick |
|---|---|
| Approximate Imperial Size | 0.78 in diameter × 0.11 in thick |
| Tolerance | ±0.004 in |
| Material | NdFeB |
| Grade | N35 |
| Coating | Ni-Cu-Ni |
| Magnetization | Axial, through the 3 mm thickness |
| Listed Remanence (Br) | 12,100 gauss |
| Listed Surface Field | 1,737.72 gauss |
| Listed Maximum Energy Product | 35 MGOe |
| Listed Pull Force | 6.99 lb |
| Listed Maximum Temperature | 80°C / 176°F |
Axial magnetization places the north and south poles on the two flat circular faces. The 20 mm diameter gives this part a broad metric pole face while the 3 mm thickness keeps the profile compact for closures, sensor targets, positioning features, test fixtures, and embedded assemblies.
The listed pull force and surface field are reference values under specific test conditions. Air gap, mating-steel thickness, contact area, surface finish, temperature, and pull direction all affect real-world performance. Use the Magnet Pull Force Calculator for preliminary screening and the Neodymium Magnet Grades Chart when comparing grades.
SKU 9351 is suited to repeat metric production where a documented stock size simplifies sourcing and BOM control. Browse stocked neodymium disk and rod magnets for nearby sizes, or use the Magnet RFQ Builder for custom diameter, thickness, coating, tolerance, magnetization, or production quantities.

| Weight | 0.015584 lbs |
|---|---|
| Dimensions | 0.787402 × 0.787402 × 0.118110 in |
| Diameter | 20mm, .78" |
| Thickness | 3mm, .11" |
| Magnetization Direction | Axial |
| Strength / Grade | N35 |
| Shape | Disk / Disc |
| Pull Force | 6-10lbs |
| Surface | Coating | Thickness(microns) | Color | Resistance |
|---|---|---|---|---|
| Passivation | 1 | Silver Grey | Temporary Protection | |
| Nickel | Ni Ni Ni Cu Ni |
10-20 | Bright Silver | Excellent Against Humidity |
| Zinc | Zn Cu Zn |
8-20 | Bright Blue Shinny Color |
Good Against Salt Spray Excellent against Salt Spray |
| Tin | Ni Cu Sn | 15-20 | Silver | Superior Against Humidity |
| Gold | Ni Cu Au | 10-20 | Gold | Superior Against Humidity |
| Copper | Ni Cu | 10-20 | Gold | Temporary Protection |
| Epoxy | Epoxy Ni Cu Epoxy Zn Epoxy |
15-25 | Black, Red, Grey |
Excellent Against Humidity & Salt Spray |
| Chemical | Ni | 10-20 | Silver grey | Excellent Against Humidity |
330 in stock (can be backordered)
| Title | Quantity | Price Per Magnet |
|---|---|---|
| Quantity Discounts | 1 - 9 | 0% $0.90 |
| Quantity Discounts | 10 - 49 | 6.15% $0.84 |
| Quantity Discounts | 50 - 99 | 10% $0.81 |
| Quantity Discounts | 100 - 999 | 15% $0.77 |
| Quantity Discounts | 1000 - 4999 | 30% $0.63 |
| Quantity Discounts | 5000 - 9999 | 40% $0.54 |
| Quantity Discounts | 10000 + | 50% $0.45 |
Custom magnets and magnetic assemblies, factory-direct. PPAP and ISO 9001 documentation available.
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