Grade 2 alnico magnets from BuyMagnets.com are available in a low profile, u-shaped design that includes a square cutout, facilitating its use in various applications. There are two varieties of this magnet available, and both harness the u-shaped design to increase their magnetic field strength. Both varieties have a maximum operating temperature of 1000 °F. Both options have a holding force of 0.438 lbs. Both options are extremely small and lightweight, weighing .004lbs and .005lbs each.
Alnico U-Shaped Magnet, Square Cutout, Grade 2