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Round Base Features
Adams round base magnet assemblies are made with either ceramic or neodymium magnets combined with steel cups. The magnets are magnetized together with the casings to create a holding force that is significantly stronger than an individual magnet. We can easily attach hooks, knobs, PEMs or other fasteners to accommodate your specific holding requirements. We coat all our round base magnets with nickel or chrome unless otherwise specified, and can also provide custom coatings to meet your environmental requirements.
Common applications
- Antenna mounts
- Tow light kits
- Work lamp bases
- Emergency light holders
- Vehicles flag holders
- Sign and banner holders
Holding and pull strength
Round base assemblies are up to 32 times stronger than ceramic magnets by themselves. Pull strength is tested on a flat steel plate 3/4 inch thick. The pull may vary depending on the surface it is attracted to, for example if the steel is less than 3/4 inch thick, coated, rough or rusty. We recommend that you obtain a sample to test and confirm the actual pull / holding capability when used in your application.
Colors, packaging
Adams can produce round magnet assemblies in just about any color. We can package them in individual bags or other the packaging types you specify.
Design and handling considerations
Most of our round magnetic assemblies are made with ceramic or neodymium magnets, which are brittle and may break if dropped or if riveting is used in their application. Please use caution when handling channel magnets assemblies, their exceptional magnetic force may cause them to attract to metal (or to each other) so strongly that putting fingers in their path could prove painful.
Product Specifications
Adams supplies the following round base magnet assemblies from stock, with dimensions listed in inches. We can also make custom base assemblies to meet your exact specifications. To make ordering your magnets easier, just select the right size on the charts below, note the item number and contact us to place your order. Call us at 800- 747-7543 if you don't see what you're looking for in this brief listing.
The Original Round Bases
| Pull LBS | OD | CH | MH | T | Stock# | Item# | View Print |
|---|---|---|---|---|---|---|---|
| 210 | 4.900 | 0.500 | 1.750 | 0.500 | RB-90 | 64J0001 |  |
| 120 | 3.870 | 0.380 | 1.280 | 0.510 | RB-85 | 64I0007 | |
| 110 | 3.200 | 0.280 | 1.250 | 0.415 | RB-80 | 64H0004 | |
| 85 | 2.910 | 0.270 | 1.000 | 0.370 | RB-75 | 64G0001 | |
| 80 | 2.625 | 0.280 | 1.000 | 0.370 | RB-70 | 64F0002 | |
| 50 | 2.375 | 0.270 | 0.800 | 0.350 | RB-60 | 64E0001 | |
| 40 | 2.030 | 0.192 | 0.850 | 0.343 | RB-51 | 64D0005 | |
| 35 | 2.030 | 0.192 | 0.870 | 0.300 | RB-50 | 64C0022 | |
| 15 | 1.415 | 0.192 | 0.375 | 0.260 | RB-40 | 64B0006 | |
| 8 | 1.215 | 0.156 | 0.255 | 0.190 | RB-20 | 64A0004 | |
| 5 | 1.205 | 0.125 | 0.187 | 0.188 | RB-20 | 64A0001 | |
Round Bases with Hooks
| Pull LBS | OD | T | Item # Nickel | View Print |
|---|---|---|---|---|
| 9 | 0.984 | 0.280 | 64PN0025 | |
| 18 | 1.25 | 0.275 | 64PN0032 | |
| 28 | 1.58 | 0.315 | 64PN0040 | |
| 49 | 1.97 | 0.394 | 64PN0050 | |
| 78 | 2.48 | 0.551 | 64PN0063 | |
Round Base with PEM Nut
| Pull LBS | OD | T | Item # Nickel | View Print |
|---|---|---|---|---|
| 9 | 0.984 | 0.275 | 64PNN025 | |
| 18 | 1.25 | 0.280 | 64PNN032 | |
| 28 | 1.58 | 0.315 | 64PNN040 | |
| 49 | 1.97 | 0.394 | 64PNN050 | |
| 78 | 2.48 | 0.551 | 64PNN063 | |
Neo Round Bases: Nickel Coated with Protective Covers
| Pull LBS | OD | CH | T | Stock | Item# | View Print |
|---|---|---|---|---|---|---|
| 40 | 1.209 | 0.126 | 0.185 | RB-20 | 64ANC12 | |
| 65 | 1.425 | 0.192 | 0.272 | RB-40 | 64BNC06 | |
| 90 | 2.035 | 0.193 | 0.299 | RB-50 | 64CNC05 | |
| 110 | 2.375 | 0.270 | 0.350 | RB-60 | 64ENC01 | |
| 140 | 2.630 | 0.280 | 0.375 | RB-70 | 64FNC02 | |
| 195 | 3.2 | 0.280 | 0.425 | RB-80 | 64HNC04 | |
| 300 | 4.90 | 0.500 | 0.500 | RB-90 | 64JNC09 | |
Neo Round Bases: Rubber Coated
| Pull LBS | OD | Cup HT | Assembly HT | Assembly Type | Thread | Item# | View Print |
|---|---|---|---|---|---|---|---|
| 20 | 1.693 | 0.236 | 1.236 | Male Stud | 1/4-20 | 64RBM045 | |
| 32 | 2.598 | 0.315 | 1.312 | Male Stud | 1/4-20 | 64RBM070 | |
| 105 | 3.5 | 0.326 | 1.325 | Male Stud | 1/4-20 | 64RBM080 | |
| 20 | 1.693 | 0.236 | 0.236 | Female Standoff | M4 | 64RBF045 | |
| 32 | 2.570 | 0.312 | 0.312 | Female Standoff | M5 | 64RBF070 | |
| 105 | 3.5 | 0.326 | 0.326 | Female Standoff | M6 | 64RBF080 | |
Neo Round Bases: Miniature Sizes
| Pull LBS | OD | Cup HT | Assembly HT | Assembly Type | Thread | Item# | View Print |
|---|---|---|---|---|---|---|---|
| 12 | 0.625 | 0.195 | 0.511 | Male Stud | M4 | 64AN000 | |
| 48 | 0.977 | 0.314 | 0.664 | Male Stud | M6 | 64AN001 | |
| 12 | 0.629 | 0.196 | 0.511 | Female Stud | M4 | 64AN016 | |
| 48 | 0.977 | 0.314 | 0.550 | Female Stud | M4 | 64AN025 | |
| 12 | 0.629 | 0.180 | 0.450 | Threaded Hook | M4 | 64ANH16 | |
| 48 | 0.977 | 0.314 | 0.665 | Threaded Hook | M4 | 64ANH25 | |
| Pull LBS | OD | CH | MH | Cup HT | Assembly Type | Item# | View Print |
|---|---|---|---|---|---|---|---|
| 9 | 0.625 | 0.138 | n/a | 0.196 | Counter Sunk Hole | 64ANC16 | |
| 55 | 1.26 | 0.217 | n/a | 0.315 | Counter Sunk Hole | 64ANC32 | |
| 13 | 0.781 | 0.176 | 0.315 | 0.270 | Counter Bore Hole | 64ANC20 | |
| 30 | 0.977 | 0.216 | 0.354 | 0.314 | Counter Bore Hole | 64ANC25 | |