B884 - Neodymium Block Magnet - 1/2" Len x 1/2" Wid x 1/4" Thi

• Dimensions: 1/2" x 1/2" x 1/4" thick
• Tolerances: ±0.004" x ±0.004" x ±0.004"
• Material: NdFeB, Grade N42
• Plating/Coating: Ni-Cu-Ni (Nickel)
• Magnetization Direction: Thru Thickness
• Weight: 0.271 oz. (7.68 g)
• Pull Force, Case 1: 13.15 lbs
• Pull Force, Case 2: 21.44 lbs
• Surface Field: 4400 Gauss
• Max Operating Temp: 176ºF (80ºC)
• Brmax: 13,200 Gauss
• BHmax: 42 MGOe

These are very strong squares. They will hold a lot of weight, but can also pinch fingers if you aren't careful. Not a toy, but very useful.

This size is also available with a countersunk hole as part number B884DCS.