SKU 9401: N35 neodymium block magnet, 40 mm × 10 mm × 5 mm, Ni-Cu-Ni coated and magnetized through the 5 mm thickness. Listed pull force: 18.61 lb; surface field: 5,193.24 Gauss.
Its long rectangular geometry suits fixtures, sensors, prototypes and linear assemblies. Browse all Block & Bar Magnets.
SKU 9401 is an N35 neodymium block magnet measuring 40 × 10 × 5 mm. Its long rectangular geometry and through-thickness magnetization make it a useful stock option for engineers, OEMs, and procurement teams working on linear fixtures, magnetic stops, sensor assemblies, closures, prototypes, and production equipment.
| Magnet Size | 40 × 10 × 5 mm |
|---|---|
| Approximate Imperial Size | 1.57 × 0.39 × 0.19 in |
| Tolerance | ±0.004 in |
| Material | NdFeB |
| Grade | N35 |
| Coating | Ni-Cu-Ni |
| Magnetization | Through the 5 mm thickness |
| Listed Remanence (Br) | 12,100 gauss |
| Listed Surface Field | 5,193.24 gauss |
| Listed Maximum Energy Product | 35 MGOe |
| Listed Pull Force | 18.61 lb |
| Listed Maximum Temperature | 80°C / 176°F |
This magnet is magnetized through its 5 mm thickness, so the 40 × 10 mm faces are the working pole faces. That elongated pole geometry can be useful in linear fixtures, equipment stops, magnetic catches, test assemblies, and applications where a long rectangular field footprint is preferable to a disk.
The listed pull-force value is a comparison value under defined contact conditions, not a guaranteed safe working load. Air gap, adhesive layers, target-steel thickness, surface roughness, temperature, curvature, and shear loading can all reduce usable force. Use the Magnet Pull Force Calculator for preliminary screening and the Neodymium Magnet Grades Chart when comparing grades.
Browse stocked block and bar magnets for related sizes, or use the Magnet RFQ Builder for custom length, width, thickness, coating, tolerance, magnetization direction, or production quantities.

| Weight | 0.033069 lbs |
|---|---|
| Dimensions | 1.574803 × 0.393701 × 0.196850 in |
| Length | 40mm, 1.57" |
| Shape | Block / Bar |
| Strength / Grade | N35 |
| Width | 10mm, .39" |
| Thickness | 0.19", 5mm |
| Pull Force | 11-20lbs |
| 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 |

64 in stock (can be backordered)
| Title | Quantity | Price Per Magnet |
|---|---|---|
| Quantity Discounts | 1 - 9 | 0% $3.00 |
| Quantity Discounts | 10 - 49 | 6.15% $2.82 |
| Quantity Discounts | 50 - 99 | 10% $2.70 |
| Quantity Discounts | 100 - 999 | 15% $2.55 |
| Quantity Discounts | 1000 - 4999 | 30% $2.10 |
| Quantity Discounts | 5000 - 9999 | 40% $1.80 |
| Quantity Discounts | 10000 + | 50% $1.50 |
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