Magnetic square q1. 1.5mm steel sheets. of thickness. orange epoxy paint ral2002, exterior protector of the ferrite made of bakelite. capacity of 45° and 90°. professional industrial use. permanent ferrite magnet of 1100 gauss and protected with bakelite. metric 4 through and threaded screws. magnet: 60-32/10mm. weight: 0.30kg. measures: 8.5x15cm