This strong rubber coated mounting magnet measures 2.00” in length x 1.00" width x 0.250" thickness (51 mm L x 25.4 mm W x 6.4 mm THK) with a 0.260" (6.6 mm) center counterbore hole to accommodate M6 screws & fasteners.
Each magnet weighs 0.43 oz (12 gm) and has a pull force of up to 35 lbs. (15.9 kg). Constructed with N42 Neodymium magnet encased in a steel structure & coated with a protective black Isoprene rubber coating (approximately 0.03" thick.)