OD OD |
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Hole Diameter Hole Diameter |
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Thickness Thickness |
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Direction of Magnetization Direction of Magnetization |
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| Through Thickness | Through Diameter |
Maximum Pull Maximum Pull |
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Pull Rating Pull Rating |
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Mounting Hole Style Mounting Hole Style |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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Maximum Energy Product Maximum Energy Product |
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Flux Density Flux Density |
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Countersink Location Countersink Location |
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About Magnets
More
Neodymium Magnets with Unthreaded Hole
Made of neodymium, these rare earth magnets are the strongest for their size. Slide onto a rod or use a bolt or screw to install.
Choose a straight, countersunk, or counterbored hole. Magnets with a countersink on one side can be mounted with the North pole facing out. Magnets with a countersink or counterbore on both sides can be mounted with either the North or South pole facing out.
Magnets with poles magnetized through the diameter are often used in rotation sensors.
Warning: Maximum pull ratings are based on direct contact with rust-free and unpainted iron plate. Variations in material condition will significantly reduce these ratings. Do not use for lifting over people.
For technical drawings and 3-D models, click on a part number.
Each | |||||||
|---|---|---|---|---|---|---|---|
| OD | Hole Dia. | Max. Pull, lbs. | Max. Temperature, °F | Magnet Grade | 1-49 | 50-Up | |
Magnetized Through Thickness | |||||||
0.06" Thick. | |||||||
| 3/8" | 1/8" | 1.5 | 300° | N35SH | 0000000 | 00000 | 00000 |
0.1" Thick. | |||||||
| 1/4" | 1/8" | 1.3 | 300° | N38SH | 0000000 | 0000 | 0000 |
| 3/8" | 1/8" | 2.2 | 300° | N38SH | 000000 | 0000 | 0000 |
| 1/2" | 1/8" | 3 | 300° | N38SH | 0000000 | 0000 | 0000 |
| 1/2" | 0.2" | 3 | 300° | N38SH | 0000000 | 0000 | 0000 |
| 1" | 1/8" | 7 | 300° | N38SH | 0000000 | 0000 | 0000 |
| 1" | 1/4" | 6 | 300° | N38SH | 0000000 | 00000 | 00000 |
| 1" | 1/2" | 7 | 300° | N38SH | 0000000 | 00000 | 00000 |
1/8" Thick. | |||||||
| 1/4" | 1/8" | 1.5 | 175° | N45 | 00000000 | 0000 | 0000 |
| 3/8" | 1/8" | 4 | 175° | N45 | 00000000 | 0000 | 0000 |
| 1/2" | 1/8" | 6 | 175° | N45 | 00000000 | 0000 | 0000 |
| 5/8" | 1/8" | 8 | 175° | N45 | 00000000 | 0000 | 0000 |
| 3/4" | 1/8" | 10 | 175° | N45 | 00000000 | 0000 | 0000 |
| 7/8" | 1/8" | 11.5 | 175° | N45 | 00000000 | 0000 | 0000 |
| 1" | 1/4" | 13 | 175° | N45 | 00000000 | 00000 | 0000 |
1/4" Thick. | |||||||
| 1/4" | 1/8" | 2.3 | 300° | N38SH | 0000000 | 0000 | 0000 |
| 1/4" | 1/8" | 2.5 | 175° | N45 | 00000000 | 0000 | 0000 |
| 3/8" | 1/8" | 5 | 300° | N38SH | 0000000 | 0000 | 0000 |
| 3/8" | 1/8" | 6 | 175° | N45 | 00000000 | 0000 | 0000 |
| 1/2" | 1/8" | 8 | 300° | N38SH | 0000000 | 0000 | 0000 |
| 1/2" | 1/8" | 11 | 175° | N45 | 00000000 | 0000 | 0000 |
| 1/2" | 0.2" | 8 | 300° | N38SH | 0000000 | 00000 | 0000 |
| 5/8" | 1/8" | 15.5 | 175° | N45 | 00000000 | 0000 | 0000 |
| 3/4" | 1/8" | 19.5 | 175° | N45 | 00000000 | 00000 | 0000 |
| 7/8" | 1/8" | 24 | 175° | N45 | 00000000 | 00000 | 00000 |
| 1" | 1/8" | 19 | 300° | N38SH | 0000000 | 00000 | 00000 |
| 1" | 1/4" | 16 | 300° | N38SH | 0000000 | 00000 | 00000 |
| 1" | 1/4" | 27.5 | 175° | N45 | 00000000 | 00000 | 00000 |
| 1" | 1/2" | 20 | 300° | N38SH | 0000000 | 00000 | 00000 |
1/2" Thick. | |||||||
| 1/2" | 1/8" | 14.4 | 175° | N45 | 00000000 | 00000 | 0000 |
| 1/2" | 1/8" | 16 | 300° | N38SH | 0000000 | 00000 | 00000 |
| 1" | 1/2" | 21 | 300° | N38SH | 0000000 | 00000 | 00000 |
3/4" Thick. | |||||||
| 1" | 1/2" | 32 | 300° | N38SH | 000000 | 00000 | 00000 |
1" Thick. | |||||||
| 1/2" | 1/4" | 13 | 175° | N45 | 00000000 | 00000 | 00000 |
1 1/2" Thick. | |||||||
| 1/2" | 1/4" | 13.5 | 175° | N45 | 00000000 | 00000 | 00000 |
2" Thick. | |||||||
| 1/2" | 1/4" | 13.7 | 175° | N45 | 00000000 | 00000 | 00000 |
Magnetized Through Diameter | |||||||
1/8" Thick. | |||||||
| 1/4" | 1/8" | 2.6 | 175° | N45 | 00000000 | 0000 | 0000 |
| 3/8" | 1/8" | 4.2 | 175° | N45 | 00000000 | 0000 | 0000 |
| 1/2" | 1/8" | 6 | 175° | N45 | 00000000 | 0000 | 0000 |
| 5/8" | 1/8" | 8 | 175° | N45 | 00000000 | 0000 | 0000 |
| 3/4" | 1/8" | 10 | 175° | N45 | 00000000 | 0000 | 0000 |
| 7/8" | 1/8" | 11.5 | 175° | N45 | 00000000 | 00000 | 0000 |
| 1" | 1/4" | 13 | 175° | N45 | 00000000 | 00000 | 00000 |
1/4" Thick. | |||||||
| 1/4" | 1/8" | 2.5 | 175° | N45 | 00000000 | 0000 | 0000 |
| 3/8" | 1/8" | 6.5 | 175° | N45 | 00000000 | 0000 | 0000 |
| 1/2" | 1/8" | 11 | 175° | N45 | 00000000 | 0000 | 0000 |
| 5/8" | 1/8" | 15.5 | 175° | N45 | 00000000 | 00000 | 0000 |
| 3/4" | 1/8" | 19.5 | 175° | N45 | 00000000 | 00000 | 00000 |
| 7/8" | 1/8" | 24 | 175° | N45 | 00000000 | 00000 | 00000 |
| 1" | 1/4" | 27.5 | 175° | N45 | 00000000 | 00000 | 00000 |
1/2" Thick. | |||||||
| 1/2" | 1/8" | 14.5 | 175° | N45 | 00000000 | 00000 | 00000 |
1" Thick. | |||||||
| 1/2" | 1/4" | 13 | 175° | N45 | 00000000 | 00000 | 00000 |
1 1/2" Thick. | |||||||
| 1/2" | 1/4" | 13.5 | 175° | N45 | 00000000 | 00000 | 00000 |
2" Thick. | |||||||
| 1/2" | 1/4" | 13.6 | 175° | N45 | 00000000 | 00000 | 00000 |
Each | ||||||||
|---|---|---|---|---|---|---|---|---|
| OD | Hole Dia. | Max. Pull, lbs. | Max. Temperature, °F | Magnet Grade | For Screw Size  | 1-49 | 50-Up | |
Magnetized Through Thickness | ||||||||
1/8" Thick. | ||||||||
| 1/4" | 0.107" | 1.2 | 175° | N45 | No. 2 | 00000000 | 00000 | 00000 |
| 3/8" | 1/8" | 3.8 | 175° | N45 | No. 4 | 00000000 | 0000 | 0000 |
| 3/8" | 1/8" | 4.5 | 210° | N35 | No. 4 | 00000000 | 0000 | 0000 |
| 1/2" | 0.136" | 5.5 | 175° | N42 | No. 4 | 00000000 | 0000 | 0000 |
| 5/8" | 0.17" | 7.1 | 175° | N42 | No. 8 | 00000000 | 0000 | 0000 |
Each | ||||||||
|---|---|---|---|---|---|---|---|---|
| OD | Hole Dia. | Max. Pull, lbs. | Max. Temperature, °F | Magnet Grade | For Screw Size | 1-49 | 50-Up | |
Magnetized Through Thickness | ||||||||
1/8" Thick. | ||||||||
| 5/8" | 0.224" | 6.8 | 175° | N45 | No. 4 | 00000000 | 00000 | 00000 |
3/16" Thick. | ||||||||
| 3/4" | 0.3" | 14.7 | 175° | N45 | No. 6 | 00000000 | 0000 | 0000 |
1/4" Thick. | ||||||||
| 7/8" | 0.177" | 22 | 175° | N45 | No. 8 | 00000000 | 00000 | 0000 |
| 1" | 0.217" | 27 | 175° | N45 | No. 10 | 00000000 | 00000 | 00000 |
| 1 1/4" | 0.194" | 30.5 | 175° | N45 | No. 8 | 00000000 | 00000 | 00000 |
| 1 1/4" | 0.217" | 30 | 175° | N45 | No. 10 | 00000000 | 00000 | 00000 |
3/8" Thick. | ||||||||
| 1 1/2" | 0.211" | 56 | 175° | N45 | No. 10 | 00000000 | 00000 | 00000 |
| 1 1/2" | 0.266" | 55.2 | 175° | N45 | 1/4" | 00000000 | 00000 | 00000 |
1/2" Thick. | ||||||||
| 2" | 0.281" | 96.5 | 175° | N45 | 1/4" | 00000000 | 00000 | 00000 |
Alnico Magnets with Unthreaded Hole
Alnico magnets aren't as strong as rare earth magnets, but they withstand the highest temperatures. Slide onto a rod or use a bolt or screw to install.
Warning: Maximum pull ratings are based on direct contact with rust-free and unpainted iron plate. Variations in material condition will significantly reduce these ratings. Do not use for lifting over people.
For technical drawings and 3-D models, click on a part number.
| Thick. | OD | Hole Dia. | Max. Pull, lbs. | Max. Temperature, °F | Magnet Grade | Each | |
Magnetized Through Thickness | |||||||
|---|---|---|---|---|---|---|---|
| 1/8" | 3/8" | 3/32" | 0.4 | 970° | Alnico 8 | 00000000 | 00000 |
| 0.14" | 0.525" | 1/4" | 0.1 | 970° | Alnico 8 | 00000000 | 00000 |
| 0.225" | 1.282" | 0.532" | 0.3 | 970° | Alnico 8 | 00000000 | 00000 |
| 0.27" | 0.91" | 0.475" | 0.8 | 970° | Alnico 8 | 00000000 | 00000 |
| 1/2" | 1" | 3/4" | 1.3 | 970° | Alnico 5 | 0000000 | 00000 |
| 3/4" | 1 1/2" | 1 1/8" | 3 | 970° | Alnico 5 | 0000000 | 00000 |
| 1" | 2" | 1 1/2" | 6 | 970° | Alnico 5 | 0000000 | 00000 |
| 1 1/4" | 2 1/2" | 1 7/8" | 8 | 970° | Alnico 5 | 0000000 | 00000 |
| 1 1/2" | 3" | 2 1/4" | 14 | 970° | Alnico 5 | 0000000 | 000000 |
Ceramic Magnets with Unthreaded Hole
Ceramic magnets resist demagnetization better than other magnets and are an economical choice. Slide onto a rod or use a bolt or screw to install.
Warning: Maximum pull ratings are based on direct contact with rust-free and unpainted iron plate. Variations in material condition will significantly reduce these ratings. Do not use for lifting over people.
For technical drawings and 3-D models, click on a part number.
| Thick. | OD | Hole Dia. | Max. Pull, lbs. | Max. Temperature, °F | Magnet Grade | Each | |
| 0.118" | 0.689" | 19/64" | 0.4 | 400° | C8 | 0000000 | 00000 |
| 1/8" | 1/2" | 3/16" | 0.1 | 400° | C1 | 000000 | 000 |
| 3/16" | 1 1/4" | 3/8" | 1 | 400° | C5 | 0000000 | 0000 |
| 0.236" | 1 1/8" | 3/8" | 0.6 | 400° | C1 | 000000 | 000 |
| 1/4" | 3/4" | 17/64" | 0.3 | 400° | C1 | 000000 | 000 |
| 1/4" | 1.079" | 0.597" | 0.7 | 400° | C1 | 000000 | 000 |
| 1/4" | 1.705" | 0.705" | 0.7 | 400° | C1 | 000000 | 0000 |
| 0.28" | 2.38" | 1" | 3 | 400° | C5 | 0000000 | 0000 |
| 0.3" | 2.032" | 0.705" | 1.7 | 400° | C1 | 000000 | 0000 |
| 0.314" | 1.77" | 0.866" | 2.5 | 400° | C5 | 0000000 | 0000 |
| 0.33" | 2.8" | 1 13/64" | 4 | 400° | C5 | 0000000 | 0000 |
| 0.4" | 4.54" | 1 3/4" | 9 | 400° | C5 | 0000000 | 00000 |
| 0.425" | 3.376" | 1.28" | 7 | 400° | C5 | 0000000 | 0000 |
| 0.431" | 1.23" | 0.885" | 0.6 | 400° | C1 | 000000 | 0000 |
| 0.55" | 5.27" | 2.21" | 17 | 400° | C5 | 0000000 | 00000 |
Ferrite Cores
Often used as inductors and transformers in electrical circuits, these cores generate a magnetic hold when magnet wire (sold separately) is wrapped over them and energized. Remove the electric current and the cores lose their magnetism.
Encased Ceramic Magnets with Unthreaded Hole
A case protects the magnetic material. Steel cases also concentrate and focus the magnetic field. Ceramic magnets resist demagnetization better than other magnets and are an economical choice.
A keeper covers the poles to preserve the strength of the magnet and protect it from attracting metal during storage.
Warning: Maximum pull ratings are based on direct contact with rust-free and unpainted iron plate. Variations in material condition will significantly reduce these ratings. Do not use for lifting over people.
For technical drawings and 3-D models, click on a part number.
| Thick. | OD | Hole Dia. | Max. Pull, lbs. | Sets of Poles | Max. Temp., °F | Magnet Grade | Mounting Hole Style | Number of Mounting Holes | For Screw Size | Includes | Each | ||
Zinc-Plated Steel Case | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 3/16" | 1 15/64" | 5/32" | 15 | 1 | 245° | C8 | Straight | 1 | No. 6 | __ | 0000000 | 00000 |
| 1 | 0.24" | 0.79" | 0.165" | 5 | 3 | 245° | C5 | Countersunk | 1 | No. 6 | Keeper | 0000000 | 0000 |
| 1 | 9/32" | 1 13/32" | 3/16" | 25 | 1 | 245° | C8 | Straight | 1 | No. 8 | __ | 0000000 | 0000 |
| 1 | 5/16" | 1.57" | 0.217" | 19 | 3 | 245° | C5 | Countersunk | 1 | No. 12 | Keeper | 0000000 | 0000 |
| 1 | 5/16" | 2 1/32" | 3/16" | 42 | 1 | 245° | C8 | Straight | 1 | No. 8 | __ | 0000000 | 0000 |
| 1 | 3/8" | 2 5/8" | 9/32" | 80 | 1 | 245° | C8 | Straight | 1 | 1/4" | __ | 0000000 | 0000 |
| 1 | 3/8" | 2 7/8" | 9/32" | 112 | 1 | 245° | C8 | Straight | 1 | 1/4" | __ | 0000000 | 0000 |
| 1 | 7/16" | 3 3/16" | 9/32" | 140 | 1 | 245° | C8 | Straight | 1 | 1/4" | __ | 0000000 | 00000 |
| 1 | 1/2" | 4 29/32" | 1/2" | 170 | 1 | 245° | C8 | Straight | 1 | 1/2" | __ | 0000000 | 00000 |
| 1 | 33/64" | 3 7/8" | 3/8" | 147 | 1 | 245° | C8 | Straight | 1 | 5/16" | __ | 0000000 | 00000 |
| 1 | 5mm | 16mm | 4mm | 3 | 1 | 245° | __ | Countersunk | 1 | M3 | __ | 0000000 | 0000 |
| 1 | 6mm | 20mm | 4mm | 6 | 1 | 245° | __ | Countersunk | 1 | M3 | __ | 0000000 | 0000 |
| 1 | 7mm | 25mm | 6mm | 8 | 1 | 245° | __ | Countersunk | 1 | M5 | __ | 0000000 | 0000 |
| 1 | 7mm | 32mm | 6mm | 16 | 1 | 245° | __ | Countersunk | 1 | M5 | __ | 0000000 | 0000 |
| 1 | 8mm | 40mm | 6mm | 20 | 1 | 245° | __ | Countersunk | 1 | M5 | __ | 0000000 | 0000 |
| 1 | 10mm | 50mm | 9mm | 40 | 1 | 245° | __ | Straight | 1 | M8 | __ | 0000000 | 0000 |
| 1 | 14mm | 63mm | 7mm | 65 | 1 | 245° | __ | Straight | 1 | M8 | __ | 0000000 | 00000 |
| 1 | 18mm | 80mm | 7mm | 120 | 1 | 245° | __ | Straight | 1 | M8 | __ | 0000000 | 00000 |
| 1 | 22mm | 100mm | 11mm | 150 | 1 | 245° | __ | Straight | 1 | M10 | __ | 0000000 | 00000 |
Chrome-Plated Steel Case | |||||||||||||
| 1 | 11/64" | 1.21" | 1/8" | 4 | 1 | 170° | C5 | Straight | 1 | No. 5 | __ | 0000000 | 0000 |
| 1 | 19/64" | 1 45/64" | 0.153" | 12 | 1 | 170° | C5 | Straight | 1 | No. 6 | __ | 0000000 | 0000 |
| 1 | 5/16" | 2 3/16" | 13/64" | 30 | 1 | 170° | C5 | Straight | 1 | No. 10 | __ | 0000000 | 0000 |
| 1 | 0.35" | 2 3/8" | 13/64" | 45 | 1 | 170° | C5 | Straight | 1 | No. 10 | __ | 0000000 | 0000 |
| 1 | 3/8" | 2 51/64" | 1/4" | 75 | 1 | 170° | C5 | Straight | 1 | 1/4" | __ | 0000000 | 0000 |
| 1 | 0.51" | 3 55/64" | 3/8" | 110 | 1 | 170° | C5 | Straight | 1 | 3/8" | __ | 0000000 | 00000 |
| 2 | 19/64" | 2 1/32" | 3/16" | 35 | 1 | 170° | C5 | Straight | 1 | No. 8 | __ | 0000000 | 0000 |
| 2 | 33/64" | 3 3/8" | 3/8" | 120 | 1 | 170° | C5 | Straight | 1 | 5/16" | __ | 0000000 | 0000 |
Stainless Steel Case | |||||||||||||
| 1 | 6mm | 20mm | 4mm | 4 | 1 | 425° | __ | Countersunk | 1 | M3 | __ | 0000000 | 0000 |
| 1 | 7mm | 25mm | 6mm | 6 | 1 | 425° | __ | Countersunk | 1 | M5 | __ | 0000000 | 0000 |
| 1 | 7mm | 32mm | 6mm | 13 | 1 | 425° | __ | Countersunk | 1 | M5 | __ | 0000000 | 0000 |
| 1 | 8mm | 40mm | 6mm | 16 | 1 | 425° | __ | Countersunk | 1 | M5 | __ | 0000000 | 0000 |
| 1 | 10mm | 50mm | 9mm | 32 | 1 | 425° | __ | Straight | 1 | M8 | __ | 0000000 | 00000 |
| 1 | 14mm | 63mm | 9mm | 50 | 1 | 425° | __ | Straight | 1 | M8 | __ | 0000000 | 00000 |
Machinable Magnets with Unthreaded Hole
These magnets are bonded with epoxy resin, so they can be machined with carbide tooling. Slide onto a rod or use a bolt or screw to install.
Warning: Maximum pull ratings are based on direct contact with rust-free and unpainted iron plate. Variations in material condition will significantly reduce these ratings. Do not use for lifting over people.
For technical drawings and 3-D models, click on a part number.
Each | ||||||||
|---|---|---|---|---|---|---|---|---|
| OD | Hole Dia. | Max. Pull, lbs. | Sets of Poles | Max. Temperature, °F | Magnet Grade | 1-49 | 50-Up | |
0.197" Thick. | ||||||||
| 1.023" | 0.866" | 0.6 | 1 | 300° | N10SH | 0000000 | 000000 | 000000 |
| 1.181" | 0.63" | 2 | 1 | 300° | N10SH | 0000000 | 00000 | 00000 |
| 1.378" | 0.811" | 2 | 1 | 300° | N10SH | 0000000 | 00000 | 00000 |
0.394" Thick. | ||||||||
| 1.023" | 0.866" | 1.1 | 1 | 300° | N10SH | 0000000 | 00000 | 00000 |
| 1.181" | 0.63" | 4 | 1 | 300° | N10SH | 0000000 | 00000 | 00000 |
| 1.378" | 0.811" | 4 | 1 | 300° | N10SH | 0000000 | 00000 | 00000 |